Home / 99,620.46-137,475.36-54,298.45

Finding the Fourth Proportional to 99,620.46, 137,475.36 and 54,298.45

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Solution

The fourth proportional to 99,620.46, 137,475.36 and 54,298.45 is: 74,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,620.46 : 137,475.36 = 54,298.45 : x
  2. Step 2: Convert to fraction form
    99,620.46/137,475.36 = 54,298.45/x
  3. Step 3: Cross multiply
    99,620.46x = 137,475.36 × 54,298.45
  4. Step 4: Simplify right side
    99,620.46x = 7,464,699,133.04
  5. Step 5: Solve for x
    x = 7,464,699,133.04/99,620.46
  6. Step 6: Final answer
    x = 74,931.39

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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.