Home / 99,565.47-137,396.39-54,243.81

Finding the Fourth Proportional to 99,565.47, 137,396.39 and 54,243.81

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Solution

The fourth proportional to 99,565.47, 137,396.39 and 54,243.81 is: 74,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,565.47 : 137,396.39 = 54,243.81 : x
  2. Step 2: Convert to fraction form
    99,565.47/137,396.39 = 54,243.81/x
  3. Step 3: Cross multiply
    99,565.47x = 137,396.39 × 54,243.81
  4. Step 4: Simplify right side
    99,565.47x = 7,452,903,402.63
  5. Step 5: Solve for x
    x = 7,452,903,402.63/99,565.47
  6. Step 6: Final answer
    x = 74,854.30

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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.