Home / 91,877.20-137,783.40-41,981.20

Finding the Fourth Proportional to 91,877.20, 137,783.40 and 41,981.20

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Solution

The fourth proportional to 91,877.20, 137,783.40 and 41,981.20 is: 62,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,877.20 : 137,783.40 = 41,981.20 : x
  2. Step 2: Convert to fraction form
    91,877.20/137,783.40 = 41,981.20/x
  3. Step 3: Cross multiply
    91,877.20x = 137,783.40 × 41,981.20
  4. Step 4: Simplify right side
    91,877.20x = 5,784,312,472.08
  5. Step 5: Solve for x
    x = 5,784,312,472.08/91,877.20
  6. Step 6: Final answer
    x = 62,957.00

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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.