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Finding the Fourth Proportional to 91,737.63, 126,599.13 and 55,434.03

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Solution

The fourth proportional to 91,737.63, 126,599.13 and 55,434.03 is: 76,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,737.63 : 126,599.13 = 55,434.03 : x
  2. Step 2: Convert to fraction form
    91,737.63/126,599.13 = 55,434.03/x
  3. Step 3: Cross multiply
    91,737.63x = 126,599.13 × 55,434.03
  4. Step 4: Simplify right side
    91,737.63x = 7,017,899,970.39
  5. Step 5: Solve for x
    x = 7,017,899,970.39/91,737.63
  6. Step 6: Final answer
    x = 76,499.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.