Home / 88,901.12-122,642.42-51,153.50

Finding the Fourth Proportional to 88,901.12, 122,642.42 and 51,153.50

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Solution

The fourth proportional to 88,901.12, 122,642.42 and 51,153.50 is: 70,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,901.12 : 122,642.42 = 51,153.50 : x
  2. Step 2: Convert to fraction form
    88,901.12/122,642.42 = 51,153.50/x
  3. Step 3: Cross multiply
    88,901.12x = 122,642.42 × 51,153.50
  4. Step 4: Simplify right side
    88,901.12x = 6,273,589,031.47
  5. Step 5: Solve for x
    x = 6,273,589,031.47/88,901.12
  6. Step 6: Final answer
    x = 70,568.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.