Home / 56,013.11-77,298.98-30,520.68

Finding the Fourth Proportional to 56,013.11, 77,298.98 and 30,520.68

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Solution

The fourth proportional to 56,013.11, 77,298.98 and 30,520.68 is: 42,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,013.11 : 77,298.98 = 30,520.68 : x
  2. Step 2: Convert to fraction form
    56,013.11/77,298.98 = 30,520.68/x
  3. Step 3: Cross multiply
    56,013.11x = 77,298.98 × 30,520.68
  4. Step 4: Simplify right side
    56,013.11x = 2,359,217,432.91
  5. Step 5: Solve for x
    x = 2,359,217,432.91/56,013.11
  6. Step 6: Final answer
    x = 42,119.02

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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.