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Finding the Fourth Proportional to 91,492.51, 126,235.66 and 52,720.80

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Solution

The fourth proportional to 91,492.51, 126,235.66 and 52,720.80 is: 72,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,492.51 : 126,235.66 = 52,720.80 : x
  2. Step 2: Convert to fraction form
    91,492.51/126,235.66 = 52,720.80/x
  3. Step 3: Cross multiply
    91,492.51x = 126,235.66 × 52,720.80
  4. Step 4: Simplify right side
    91,492.51x = 6,655,244,983.73
  5. Step 5: Solve for x
    x = 6,655,244,983.73/91,492.51
  6. Step 6: Final answer
    x = 72,740.87

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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.