Home / 56,358.04-77,774.16-31,207

Finding the Fourth Proportional to 56,358.04, 77,774.16 and 31,207

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Solution

The fourth proportional to 56,358.04, 77,774.16 and 31,207 is: 43,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.04 : 77,774.16 = 31,207 : x
  2. Step 2: Convert to fraction form
    56,358.04/77,774.16 = 31,207/x
  3. Step 3: Cross multiply
    56,358.04x = 77,774.16 × 31,207
  4. Step 4: Simplify right side
    56,358.04x = 2,427,098,211.12
  5. Step 5: Solve for x
    x = 2,427,098,211.12/56,358.04
  6. Step 6: Final answer
    x = 43,065.70

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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.