Home / 85,577.50-128,319.27-29,386.18

Finding the Fourth Proportional to 85,577.50, 128,319.27 and 29,386.18

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Solution

The fourth proportional to 85,577.50, 128,319.27 and 29,386.18 is: 44,063.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,577.50 : 128,319.27 = 29,386.18 : x
  2. Step 2: Convert to fraction form
    85,577.50/128,319.27 = 29,386.18/x
  3. Step 3: Cross multiply
    85,577.50x = 128,319.27 × 29,386.18
  4. Step 4: Simplify right side
    85,577.50x = 3,770,813,165.69
  5. Step 5: Solve for x
    x = 3,770,813,165.69/85,577.50
  6. Step 6: Final answer
    x = 44,063.14

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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.