Home / 52,443.20-78,549.60-31,630.40

Finding the Fourth Proportional to 52,443.20, 78,549.60 and 31,630.40

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Solution

The fourth proportional to 52,443.20, 78,549.60 and 31,630.40 is: 47,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,443.20 : 78,549.60 = 31,630.40 : x
  2. Step 2: Convert to fraction form
    52,443.20/78,549.60 = 31,630.40/x
  3. Step 3: Cross multiply
    52,443.20x = 78,549.60 × 31,630.40
  4. Step 4: Simplify right side
    52,443.20x = 2,484,555,267.84
  5. Step 5: Solve for x
    x = 2,484,555,267.84/52,443.20
  6. Step 6: Final answer
    x = 47,376.12

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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.