Home / 55,760.05-83,612.40-20,219.95

Finding the Fourth Proportional to 55,760.05, 83,612.40 and 20,219.95

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Solution

The fourth proportional to 55,760.05, 83,612.40 and 20,219.95 is: 30,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,760.05 : 83,612.40 = 20,219.95 : x
  2. Step 2: Convert to fraction form
    55,760.05/83,612.40 = 20,219.95/x
  3. Step 3: Cross multiply
    55,760.05x = 83,612.40 × 20,219.95
  4. Step 4: Simplify right side
    55,760.05x = 1,690,638,547.38
  5. Step 5: Solve for x
    x = 1,690,638,547.38/55,760.05
  6. Step 6: Final answer
    x = 30,319.89

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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.