Home / 81,125.46-111,953.40-45,316.86

Finding the Fourth Proportional to 81,125.46, 111,953.40 and 45,316.86

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Solution

The fourth proportional to 81,125.46, 111,953.40 and 45,316.86 is: 62,537.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,125.46 : 111,953.40 = 45,316.86 : x
  2. Step 2: Convert to fraction form
    81,125.46/111,953.40 = 45,316.86/x
  3. Step 3: Cross multiply
    81,125.46x = 111,953.40 × 45,316.86
  4. Step 4: Simplify right side
    81,125.46x = 5,073,376,554.32
  5. Step 5: Solve for x
    x = 5,073,376,554.32/81,125.46
  6. Step 6: Final answer
    x = 62,537.41

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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.