Home / 86,335.16-129,520.35-36,415.17

Finding the Fourth Proportional to 86,335.16, 129,520.35 and 36,415.17

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Solution

The fourth proportional to 86,335.16, 129,520.35 and 36,415.17 is: 54,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,335.16 : 129,520.35 = 36,415.17 : x
  2. Step 2: Convert to fraction form
    86,335.16/129,520.35 = 36,415.17/x
  3. Step 3: Cross multiply
    86,335.16x = 129,520.35 × 36,415.17
  4. Step 4: Simplify right side
    86,335.16x = 4,716,505,563.71
  5. Step 5: Solve for x
    x = 4,716,505,563.71/86,335.16
  6. Step 6: Final answer
    x = 54,630.19

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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.