Home / 57,110.17-78,836.75-42,966.49

Finding the Fourth Proportional to 57,110.17, 78,836.75 and 42,966.49

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Solution

The fourth proportional to 57,110.17, 78,836.75 and 42,966.49 is: 59,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,110.17 : 78,836.75 = 42,966.49 : x
  2. Step 2: Convert to fraction form
    57,110.17/78,836.75 = 42,966.49/x
  3. Step 3: Cross multiply
    57,110.17x = 78,836.75 × 42,966.49
  4. Step 4: Simplify right side
    57,110.17x = 3,387,338,215.68
  5. Step 5: Solve for x
    x = 3,387,338,215.68/57,110.17
  6. Step 6: Final answer
    x = 59,312.35

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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.