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Finding the Fourth Proportional to 91,813.68, 137,726.76 and 29,480.40

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Solution

The fourth proportional to 91,813.68, 137,726.76 and 29,480.40 is: 44,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,813.68 : 137,726.76 = 29,480.40 : x
  2. Step 2: Convert to fraction form
    91,813.68/137,726.76 = 29,480.40/x
  3. Step 3: Cross multiply
    91,813.68x = 137,726.76 × 29,480.40
  4. Step 4: Simplify right side
    91,813.68x = 4,060,239,975.50
  5. Step 5: Solve for x
    x = 4,060,239,975.50/91,813.68
  6. Step 6: Final answer
    x = 44,222.60

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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.