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Finding the Fourth Proportional to 75,002.34, 112,503.48 and 30,621.24

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Solution

The fourth proportional to 75,002.34, 112,503.48 and 30,621.24 is: 45,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,002.34 : 112,503.48 = 30,621.24 : x
  2. Step 2: Convert to fraction form
    75,002.34/112,503.48 = 30,621.24/x
  3. Step 3: Cross multiply
    75,002.34x = 112,503.48 × 30,621.24
  4. Step 4: Simplify right side
    75,002.34x = 3,444,996,061.92
  5. Step 5: Solve for x
    x = 3,444,996,061.92/75,002.34
  6. Step 6: Final answer
    x = 45,931.85

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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.