Home / 99,568.40-137,424.52-57,155.92

Finding the Fourth Proportional to 99,568.40, 137,424.52 and 57,155.92

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Solution

The fourth proportional to 99,568.40, 137,424.52 and 57,155.92 is: 78,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,568.40 : 137,424.52 = 57,155.92 : x
  2. Step 2: Convert to fraction form
    99,568.40/137,424.52 = 57,155.92/x
  3. Step 3: Cross multiply
    99,568.40x = 137,424.52 × 57,155.92
  4. Step 4: Simplify right side
    99,568.40x = 7,854,624,871.16
  5. Step 5: Solve for x
    x = 7,854,624,871.16/99,568.40
  6. Step 6: Final answer
    x = 78,886.72

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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.