Home / 99,587.28-137,430.96-54,265.76

Finding the Fourth Proportional to 99,587.28, 137,430.96 and 54,265.76

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Solution

The fourth proportional to 99,587.28, 137,430.96 and 54,265.76 is: 74,887.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,587.28 : 137,430.96 = 54,265.76 : x
  2. Step 2: Convert to fraction form
    99,587.28/137,430.96 = 54,265.76/x
  3. Step 3: Cross multiply
    99,587.28x = 137,430.96 × 54,265.76
  4. Step 4: Simplify right side
    99,587.28x = 7,457,795,491.93
  5. Step 5: Solve for x
    x = 7,457,795,491.93/99,587.28
  6. Step 6: Final answer
    x = 74,887.03

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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.