Home / 99,960.04-137,944.74-54,638.32

Finding the Fourth Proportional to 99,960.04, 137,944.74 and 54,638.32

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Solution

The fourth proportional to 99,960.04, 137,944.74 and 54,638.32 is: 75,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,960.04 : 137,944.74 = 54,638.32 : x
  2. Step 2: Convert to fraction form
    99,960.04/137,944.74 = 54,638.32/x
  3. Step 3: Cross multiply
    99,960.04x = 137,944.74 × 54,638.32
  4. Step 4: Simplify right side
    99,960.04x = 7,537,068,846.44
  5. Step 5: Solve for x
    x = 7,537,068,846.44/99,960.04
  6. Step 6: Final answer
    x = 75,400.82

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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.