Home / 85,032.40-127,562.10-28,877.80

Finding the Fourth Proportional to 85,032.40, 127,562.10 and 28,877.80

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Solution

The fourth proportional to 85,032.40, 127,562.10 and 28,877.80 is: 43,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,032.40 : 127,562.10 = 28,877.80 : x
  2. Step 2: Convert to fraction form
    85,032.40/127,562.10 = 28,877.80/x
  3. Step 3: Cross multiply
    85,032.40x = 127,562.10 × 28,877.80
  4. Step 4: Simplify right side
    85,032.40x = 3,683,712,811.38
  5. Step 5: Solve for x
    x = 3,683,712,811.38/85,032.40
  6. Step 6: Final answer
    x = 43,321.28

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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.