Home / 51,338.08-70,846.80-28,678.02

Finding the Fourth Proportional to 51,338.08, 70,846.80 and 28,678.02

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Solution

The fourth proportional to 51,338.08, 70,846.80 and 28,678.02 is: 39,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,338.08 : 70,846.80 = 28,678.02 : x
  2. Step 2: Convert to fraction form
    51,338.08/70,846.80 = 28,678.02/x
  3. Step 3: Cross multiply
    51,338.08x = 70,846.80 × 28,678.02
  4. Step 4: Simplify right side
    51,338.08x = 2,031,746,052.76
  5. Step 5: Solve for x
    x = 2,031,746,052.76/51,338.08
  6. Step 6: Final answer
    x = 39,575.81

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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.