Home / 48,040.32-72,068.16-20,342.40

Finding the Fourth Proportional to 48,040.32, 72,068.16 and 20,342.40

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Solution

The fourth proportional to 48,040.32, 72,068.16 and 20,342.40 is: 30,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,040.32 : 72,068.16 = 20,342.40 : x
  2. Step 2: Convert to fraction form
    48,040.32/72,068.16 = 20,342.40/x
  3. Step 3: Cross multiply
    48,040.32x = 72,068.16 × 20,342.40
  4. Step 4: Simplify right side
    48,040.32x = 1,466,039,337.98
  5. Step 5: Solve for x
    x = 1,466,039,337.98/48,040.32
  6. Step 6: Final answer
    x = 30,516.85

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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.