Home / 77,618.67-116,428.76-42,539.19

Finding the Fourth Proportional to 77,618.67, 116,428.76 and 42,539.19

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Solution

The fourth proportional to 77,618.67, 116,428.76 and 42,539.19 is: 63,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,618.67 : 116,428.76 = 42,539.19 : x
  2. Step 2: Convert to fraction form
    77,618.67/116,428.76 = 42,539.19/x
  3. Step 3: Cross multiply
    77,618.67x = 116,428.76 × 42,539.19
  4. Step 4: Simplify right side
    77,618.67x = 4,952,784,653.32
  5. Step 5: Solve for x
    x = 4,952,784,653.32/77,618.67
  6. Step 6: Final answer
    x = 63,809.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.