Home / 97,560.40-134,631.40-55,120.72

Finding the Fourth Proportional to 97,560.40, 134,631.40 and 55,120.72

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Solution

The fourth proportional to 97,560.40, 134,631.40 and 55,120.72 is: 76,065.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,560.40 : 134,631.40 = 55,120.72 : x
  2. Step 2: Convert to fraction form
    97,560.40/134,631.40 = 55,120.72/x
  3. Step 3: Cross multiply
    97,560.40x = 134,631.40 × 55,120.72
  4. Step 4: Simplify right side
    97,560.40x = 7,420,979,702.61
  5. Step 5: Solve for x
    x = 7,420,979,702.61/97,560.40
  6. Step 6: Final answer
    x = 76,065.49

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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.