Home / 99,340.64-137,089.34-54,018.64

Finding the Fourth Proportional to 99,340.64, 137,089.34 and 54,018.64

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Solution

The fourth proportional to 99,340.64, 137,089.34 and 54,018.64 is: 74,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,340.64 : 137,089.34 = 54,018.64 : x
  2. Step 2: Convert to fraction form
    99,340.64/137,089.34 = 54,018.64/x
  3. Step 3: Cross multiply
    99,340.64x = 137,089.34 × 54,018.64
  4. Step 4: Simplify right side
    99,340.64x = 7,405,379,705.30
  5. Step 5: Solve for x
    x = 7,405,379,705.30/99,340.64
  6. Step 6: Final answer
    x = 74,545.32

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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.