Home / 57,254.90-78,984.54-38,143.55

Finding the Fourth Proportional to 57,254.90, 78,984.54 and 38,143.55

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Solution

The fourth proportional to 57,254.90, 78,984.54 and 38,143.55 is: 52,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,254.90 : 78,984.54 = 38,143.55 : x
  2. Step 2: Convert to fraction form
    57,254.90/78,984.54 = 38,143.55/x
  3. Step 3: Cross multiply
    57,254.90x = 78,984.54 × 38,143.55
  4. Step 4: Simplify right side
    57,254.90x = 3,012,750,948.18
  5. Step 5: Solve for x
    x = 3,012,750,948.18/57,254.90
  6. Step 6: Final answer
    x = 52,619.97

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1.5x scale

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.