Home / 61,386-84,716.96-34,531.08

Finding the Fourth Proportional to 61,386, 84,716.96 and 34,531.08

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Solution

The fourth proportional to 61,386, 84,716.96 and 34,531.08 is: 47,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,386 : 84,716.96 = 34,531.08 : x
  2. Step 2: Convert to fraction form
    61,386/84,716.96 = 34,531.08/x
  3. Step 3: Cross multiply
    61,386x = 84,716.96 × 34,531.08
  4. Step 4: Simplify right side
    61,386x = 2,925,368,123.12
  5. Step 5: Solve for x
    x = 2,925,368,123.12/61,386
  6. Step 6: Final answer
    x = 47,655.30

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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.