Home / 65,882,237.58-90,864,475.05-57,917,750.72

Finding the Fourth Proportional to 65,882,237.58, 90,864,475.05 and 57,917,750.72

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Solution

The fourth proportional to 65,882,237.58, 90,864,475.05 and 57,917,750.72 is: 79,879,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,882,237.58 : 90,864,475.05 = 57,917,750.72 : x
  2. Step 2: Convert to fraction form
    65,882,237.58/90,864,475.05 = 57,917,750.72/x
  3. Step 3: Cross multiply
    65,882,237.58x = 90,864,475.05 × 57,917,750.72
  4. Step 4: Simplify right side
    65,882,237.58x = 5,262,666,015,523,541
  5. Step 5: Solve for x
    x = 5,262,666,015,523,541/65,882,237.58
  6. Step 6: Final answer
    x = 79,879,891.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.