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Finding the Fourth Proportional to 65,492.20, 98,252.70 and 30,423.40

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Solution

The fourth proportional to 65,492.20, 98,252.70 and 30,423.40 is: 45,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,492.20 : 98,252.70 = 30,423.40 : x
  2. Step 2: Convert to fraction form
    65,492.20/98,252.70 = 30,423.40/x
  3. Step 3: Cross multiply
    65,492.20x = 98,252.70 × 30,423.40
  4. Step 4: Simplify right side
    65,492.20x = 2,989,181,193.18
  5. Step 5: Solve for x
    x = 2,989,181,193.18/65,492.20
  6. Step 6: Final answer
    x = 45,641.79

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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.