Home / 78,228.18-107,918.33-45,952.11

Finding the Fourth Proportional to 78,228.18, 107,918.33 and 45,952.11

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Solution

The fourth proportional to 78,228.18, 107,918.33 and 45,952.11 is: 63,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,228.18 : 107,918.33 = 45,952.11 : x
  2. Step 2: Convert to fraction form
    78,228.18/107,918.33 = 45,952.11/x
  3. Step 3: Cross multiply
    78,228.18x = 107,918.33 × 45,952.11
  4. Step 4: Simplify right side
    78,228.18x = 4,959,074,741.42
  5. Step 5: Solve for x
    x = 4,959,074,741.42/78,228.18
  6. Step 6: Final answer
    x = 63,392.43

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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.