Home / 56,882.18-78,498.84-31,389.02

Finding the Fourth Proportional to 56,882.18, 78,498.84 and 31,389.02

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Solution

The fourth proportional to 56,882.18, 78,498.84 and 31,389.02 is: 43,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,882.18 : 78,498.84 = 31,389.02 : x
  2. Step 2: Convert to fraction form
    56,882.18/78,498.84 = 31,389.02/x
  3. Step 3: Cross multiply
    56,882.18x = 78,498.84 × 31,389.02
  4. Step 4: Simplify right side
    56,882.18x = 2,464,001,658.74
  5. Step 5: Solve for x
    x = 2,464,001,658.74/56,882.18
  6. Step 6: Final answer
    x = 43,317.64

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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.