Home / 91,603.04-137,397.99-28,421.54

Finding the Fourth Proportional to 91,603.04, 137,397.99 and 28,421.54

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Solution

The fourth proportional to 91,603.04, 137,397.99 and 28,421.54 is: 42,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,603.04 : 137,397.99 = 28,421.54 : x
  2. Step 2: Convert to fraction form
    91,603.04/137,397.99 = 28,421.54/x
  3. Step 3: Cross multiply
    91,603.04x = 137,397.99 × 28,421.54
  4. Step 4: Simplify right side
    91,603.04x = 3,905,062,468.70
  5. Step 5: Solve for x
    x = 3,905,062,468.70/91,603.04
  6. Step 6: Final answer
    x = 42,630.27

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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.