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Finding the Fourth Proportional to 91,353.70, 137,030.55 and 59,860.90

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Solution

The fourth proportional to 91,353.70, 137,030.55 and 59,860.90 is: 89,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,353.70 : 137,030.55 = 59,860.90 : x
  2. Step 2: Convert to fraction form
    91,353.70/137,030.55 = 59,860.90/x
  3. Step 3: Cross multiply
    91,353.70x = 137,030.55 × 59,860.90
  4. Step 4: Simplify right side
    91,353.70x = 8,202,772,050.50
  5. Step 5: Solve for x
    x = 8,202,772,050.50/91,353.70
  6. Step 6: Final answer
    x = 89,791.35

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1.5x scale

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.