Home / 99,333.75-137,080.58-54,621.75

Finding the Fourth Proportional to 99,333.75, 137,080.58 and 54,621.75

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Solution

The fourth proportional to 99,333.75, 137,080.58 and 54,621.75 is: 75,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,333.75 : 137,080.58 = 54,621.75 : x
  2. Step 2: Convert to fraction form
    99,333.75/137,080.58 = 54,621.75/x
  3. Step 3: Cross multiply
    99,333.75x = 137,080.58 × 54,621.75
  4. Step 4: Simplify right side
    99,333.75x = 7,487,580,897.51
  5. Step 5: Solve for x
    x = 7,487,580,897.51/99,333.75
  6. Step 6: Final answer
    x = 75,378.02

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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.