Home / 56,496.20-84,776.70-38,978.60

Finding the Fourth Proportional to 56,496.20, 84,776.70 and 38,978.60

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Solution

The fourth proportional to 56,496.20, 84,776.70 and 38,978.60 is: 58,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,496.20 : 84,776.70 = 38,978.60 : x
  2. Step 2: Convert to fraction form
    56,496.20/84,776.70 = 38,978.60/x
  3. Step 3: Cross multiply
    56,496.20x = 84,776.70 × 38,978.60
  4. Step 4: Simplify right side
    56,496.20x = 3,304,477,078.62
  5. Step 5: Solve for x
    x = 3,304,477,078.62/56,496.20
  6. Step 6: Final answer
    x = 58,490.25

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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.