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Finding the Fourth Proportional to 91,727.60, 137,461.80 and 56,562.80

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Solution

The fourth proportional to 91,727.60, 137,461.80 and 56,562.80 is: 84,764.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,727.60 : 137,461.80 = 56,562.80 : x
  2. Step 2: Convert to fraction form
    91,727.60/137,461.80 = 56,562.80/x
  3. Step 3: Cross multiply
    91,727.60x = 137,461.80 × 56,562.80
  4. Step 4: Simplify right side
    91,727.60x = 7,775,224,301.04
  5. Step 5: Solve for x
    x = 7,775,224,301.04/91,727.60
  6. Step 6: Final answer
    x = 84,764.28

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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.