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Finding the Fourth Proportional to 50,030.10, 75,008.70 and 20,432.70

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Solution

The fourth proportional to 50,030.10, 75,008.70 and 20,432.70 is: 30,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,030.10 : 75,008.70 = 20,432.70 : x
  2. Step 2: Convert to fraction form
    50,030.10/75,008.70 = 20,432.70/x
  3. Step 3: Cross multiply
    50,030.10x = 75,008.70 × 20,432.70
  4. Step 4: Simplify right side
    50,030.10x = 1,532,630,264.49
  5. Step 5: Solve for x
    x = 1,532,630,264.49/50,030.10
  6. Step 6: Final answer
    x = 30,634.16

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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.