Home / 56,937.20-85,405.80-52,660.40

Finding the Fourth Proportional to 56,937.20, 85,405.80 and 52,660.40

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Solution

The fourth proportional to 56,937.20, 85,405.80 and 52,660.40 is: 78,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,937.20 : 85,405.80 = 52,660.40 : x
  2. Step 2: Convert to fraction form
    56,937.20/85,405.80 = 52,660.40/x
  3. Step 3: Cross multiply
    56,937.20x = 85,405.80 × 52,660.40
  4. Step 4: Simplify right side
    56,937.20x = 4,497,503,590.32
  5. Step 5: Solve for x
    x = 4,497,503,590.32/56,937.20
  6. Step 6: Final answer
    x = 78,990.60

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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.