Home / 85,543.28-118,050.92-51,587.20

Finding the Fourth Proportional to 85,543.28, 118,050.92 and 51,587.20

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Solution

The fourth proportional to 85,543.28, 118,050.92 and 51,587.20 is: 71,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,543.28 : 118,050.92 = 51,587.20 : x
  2. Step 2: Convert to fraction form
    85,543.28/118,050.92 = 51,587.20/x
  3. Step 3: Cross multiply
    85,543.28x = 118,050.92 × 51,587.20
  4. Step 4: Simplify right side
    85,543.28x = 6,089,916,420.22
  5. Step 5: Solve for x
    x = 6,089,916,420.22/85,543.28
  6. Step 6: Final answer
    x = 71,191.06

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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.