Home / 56,495.42-77,961.05-31,001.15

Finding the Fourth Proportional to 56,495.42, 77,961.05 and 31,001.15

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Solution

The fourth proportional to 56,495.42, 77,961.05 and 31,001.15 is: 42,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,495.42 : 77,961.05 = 31,001.15 : x
  2. Step 2: Convert to fraction form
    56,495.42/77,961.05 = 31,001.15/x
  3. Step 3: Cross multiply
    56,495.42x = 77,961.05 × 31,001.15
  4. Step 4: Simplify right side
    56,495.42x = 2,416,881,892.91
  5. Step 5: Solve for x
    x = 2,416,881,892.91/56,495.42
  6. Step 6: Final answer
    x = 42,780.14

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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.