Home / 99,688.52-137,569.19-57,247.36

Finding the Fourth Proportional to 99,688.52, 137,569.19 and 57,247.36

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Solution

The fourth proportional to 99,688.52, 137,569.19 and 57,247.36 is: 79,000.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,688.52 : 137,569.19 = 57,247.36 : x
  2. Step 2: Convert to fraction form
    99,688.52/137,569.19 = 57,247.36/x
  3. Step 3: Cross multiply
    99,688.52x = 137,569.19 × 57,247.36
  4. Step 4: Simplify right side
    99,688.52x = 7,875,472,314.68
  5. Step 5: Solve for x
    x = 7,875,472,314.68/99,688.52
  6. Step 6: Final answer
    x = 79,000.79

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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.