Home / 85,053.54-127,580.18-28,899.48

Finding the Fourth Proportional to 85,053.54, 127,580.18 and 28,899.48

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Solution

The fourth proportional to 85,053.54, 127,580.18 and 28,899.48 is: 43,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,053.54 : 127,580.18 = 28,899.48 : x
  2. Step 2: Convert to fraction form
    85,053.54/127,580.18 = 28,899.48/x
  3. Step 3: Cross multiply
    85,053.54x = 127,580.18 × 28,899.48
  4. Step 4: Simplify right side
    85,053.54x = 3,687,000,860.31
  5. Step 5: Solve for x
    x = 3,687,000,860.31/85,053.54
  6. Step 6: Final answer
    x = 43,349.18

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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.