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Finding the Fourth Proportional to 91,457.40, 137,182.81 and 23,988.90

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Solution

The fourth proportional to 91,457.40, 137,182.81 and 23,988.90 is: 35,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,457.40 : 137,182.81 = 23,988.90 : x
  2. Step 2: Convert to fraction form
    91,457.40/137,182.81 = 23,988.90/x
  3. Step 3: Cross multiply
    91,457.40x = 137,182.81 × 23,988.90
  4. Step 4: Simplify right side
    91,457.40x = 3,290,864,152.92
  5. Step 5: Solve for x
    x = 3,290,864,152.92/91,457.40
  6. Step 6: Final answer
    x = 35,982.48

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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.