Home / 55,124.30-82,686.45-42,002.30

Finding the Fourth Proportional to 55,124.30, 82,686.45 and 42,002.30

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Solution

The fourth proportional to 55,124.30, 82,686.45 and 42,002.30 is: 63,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,124.30 : 82,686.45 = 42,002.30 : x
  2. Step 2: Convert to fraction form
    55,124.30/82,686.45 = 42,002.30/x
  3. Step 3: Cross multiply
    55,124.30x = 82,686.45 × 42,002.30
  4. Step 4: Simplify right side
    55,124.30x = 3,473,021,078.84
  5. Step 5: Solve for x
    x = 3,473,021,078.84/55,124.30
  6. Step 6: Final answer
    x = 63,003.45

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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.