Home / 57,091.60-85,637.40-40,470.40

Finding the Fourth Proportional to 57,091.60, 85,637.40 and 40,470.40

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Solution

The fourth proportional to 57,091.60, 85,637.40 and 40,470.40 is: 60,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091.60 : 85,637.40 = 40,470.40 : x
  2. Step 2: Convert to fraction form
    57,091.60/85,637.40 = 40,470.40/x
  3. Step 3: Cross multiply
    57,091.60x = 85,637.40 × 40,470.40
  4. Step 4: Simplify right side
    57,091.60x = 3,465,779,832.96
  5. Step 5: Solve for x
    x = 3,465,779,832.96/57,091.60
  6. Step 6: Final answer
    x = 60,705.60

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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.