Home / 85,032.80-127,549.20-51,207.20

Finding the Fourth Proportional to 85,032.80, 127,549.20 and 51,207.20

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Solution

The fourth proportional to 85,032.80, 127,549.20 and 51,207.20 is: 76,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,032.80 : 127,549.20 = 51,207.20 : x
  2. Step 2: Convert to fraction form
    85,032.80/127,549.20 = 51,207.20/x
  3. Step 3: Cross multiply
    85,032.80x = 127,549.20 × 51,207.20
  4. Step 4: Simplify right side
    85,032.80x = 6,531,437,394.24
  5. Step 5: Solve for x
    x = 6,531,437,394.24/85,032.80
  6. Step 6: Final answer
    x = 76,810.80

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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.