Home / 85,172.16-127,652.40-54,016.32

Finding the Fourth Proportional to 85,172.16, 127,652.40 and 54,016.32

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Solution

The fourth proportional to 85,172.16, 127,652.40 and 54,016.32 is: 80,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,172.16 : 127,652.40 = 54,016.32 : x
  2. Step 2: Convert to fraction form
    85,172.16/127,652.40 = 54,016.32/x
  3. Step 3: Cross multiply
    85,172.16x = 127,652.40 × 54,016.32
  4. Step 4: Simplify right side
    85,172.16x = 6,895,312,887.17
  5. Step 5: Solve for x
    x = 6,895,312,887.17/85,172.16
  6. Step 6: Final answer
    x = 80,957.36

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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.