Home / 99,560.88-137,385.72-57,110.40

Finding the Fourth Proportional to 99,560.88, 137,385.72 and 57,110.40

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Solution

The fourth proportional to 99,560.88, 137,385.72 and 57,110.40 is: 78,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,560.88 : 137,385.72 = 57,110.40 : x
  2. Step 2: Convert to fraction form
    99,560.88/137,385.72 = 57,110.40/x
  3. Step 3: Cross multiply
    99,560.88x = 137,385.72 × 57,110.40
  4. Step 4: Simplify right side
    99,560.88x = 7,846,153,423.49
  5. Step 5: Solve for x
    x = 7,846,153,423.49/99,560.88
  6. Step 6: Final answer
    x = 78,807.59

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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.