Home / 55,972.55-77,242.00-30,478.52

Finding the Fourth Proportional to 55,972.55, 77,242.00 and 30,478.52

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Solution

The fourth proportional to 55,972.55, 77,242.00 and 30,478.52 is: 42,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,972.55 : 77,242.00 = 30,478.52 : x
  2. Step 2: Convert to fraction form
    55,972.55/77,242.00 = 30,478.52/x
  3. Step 3: Cross multiply
    55,972.55x = 77,242.00 × 30,478.52
  4. Step 4: Simplify right side
    55,972.55x = 2,354,221,765.64
  5. Step 5: Solve for x
    x = 2,354,221,765.64/55,972.55
  6. Step 6: Final answer
    x = 42,060.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.