Home / 86,261.16-129,314.78-33,658.40

Finding the Fourth Proportional to 86,261.16, 129,314.78 and 33,658.40

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Solution

The fourth proportional to 86,261.16, 129,314.78 and 33,658.40 is: 50,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,261.16 : 129,314.78 = 33,658.40 : x
  2. Step 2: Convert to fraction form
    86,261.16/129,314.78 = 33,658.40/x
  3. Step 3: Cross multiply
    86,261.16x = 129,314.78 × 33,658.40
  4. Step 4: Simplify right side
    86,261.16x = 4,352,528,591.15
  5. Step 5: Solve for x
    x = 4,352,528,591.15/86,261.16
  6. Step 6: Final answer
    x = 50,457.57

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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.