Home / 52,555.20-78,832.80-42,187.20

Finding the Fourth Proportional to 52,555.20, 78,832.80 and 42,187.20

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Solution

The fourth proportional to 52,555.20, 78,832.80 and 42,187.20 is: 63,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,555.20 : 78,832.80 = 42,187.20 : x
  2. Step 2: Convert to fraction form
    52,555.20/78,832.80 = 42,187.20/x
  3. Step 3: Cross multiply
    52,555.20x = 78,832.80 × 42,187.20
  4. Step 4: Simplify right side
    52,555.20x = 3,325,735,100.16
  5. Step 5: Solve for x
    x = 3,325,735,100.16/52,555.20
  6. Step 6: Final answer
    x = 63,280.80

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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.