Home / 85,685.22-128,306.43-59,113.17

Finding the Fourth Proportional to 85,685.22, 128,306.43 and 59,113.17

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Solution

The fourth proportional to 85,685.22, 128,306.43 and 59,113.17 is: 88,517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,685.22 : 128,306.43 = 59,113.17 : x
  2. Step 2: Convert to fraction form
    85,685.22/128,306.43 = 59,113.17/x
  3. Step 3: Cross multiply
    85,685.22x = 128,306.43 × 59,113.17
  4. Step 4: Simplify right side
    85,685.22x = 7,584,599,808.68
  5. Step 5: Solve for x
    x = 7,584,599,808.68/85,685.22
  6. Step 6: Final answer
    x = 88,517.01

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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.