Home / 91,011.60-136,426.68-43,539.12

Finding the Fourth Proportional to 91,011.60, 136,426.68 and 43,539.12

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Solution

The fourth proportional to 91,011.60, 136,426.68 and 43,539.12 is: 65,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,011.60 : 136,426.68 = 43,539.12 : x
  2. Step 2: Convert to fraction form
    91,011.60/136,426.68 = 43,539.12/x
  3. Step 3: Cross multiply
    91,011.60x = 136,426.68 × 43,539.12
  4. Step 4: Simplify right side
    91,011.60x = 5,939,897,591.72
  5. Step 5: Solve for x
    x = 5,939,897,591.72/91,011.60
  6. Step 6: Final answer
    x = 65,265.28

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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.