Home / 91,569.56-137,390.52-28,394.70

Finding the Fourth Proportional to 91,569.56, 137,390.52 and 28,394.70

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Solution

The fourth proportional to 91,569.56, 137,390.52 and 28,394.70 is: 42,603.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,569.56 : 137,390.52 = 28,394.70 : x
  2. Step 2: Convert to fraction form
    91,569.56/137,390.52 = 28,394.70/x
  3. Step 3: Cross multiply
    91,569.56x = 137,390.52 × 28,394.70
  4. Step 4: Simplify right side
    91,569.56x = 3,901,162,598.24
  5. Step 5: Solve for x
    x = 3,901,162,598.24/91,569.56
  6. Step 6: Final answer
    x = 42,603.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.