Home / 55,421.60-83,132.40-38,800.40

Finding the Fourth Proportional to 55,421.60, 83,132.40 and 38,800.40

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Solution

The fourth proportional to 55,421.60, 83,132.40 and 38,800.40 is: 58,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.60 : 83,132.40 = 38,800.40 : x
  2. Step 2: Convert to fraction form
    55,421.60/83,132.40 = 38,800.40/x
  3. Step 3: Cross multiply
    55,421.60x = 83,132.40 × 38,800.40
  4. Step 4: Simplify right side
    55,421.60x = 3,225,570,372.96
  5. Step 5: Solve for x
    x = 3,225,570,372.96/55,421.60
  6. Step 6: Final answer
    x = 58,200.60

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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.