Home / 78,731.45-108,643.95-44,281.34

Finding the Fourth Proportional to 78,731.45, 108,643.95 and 44,281.34

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Solution

The fourth proportional to 78,731.45, 108,643.95 and 44,281.34 is: 61,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731.45 : 108,643.95 = 44,281.34 : x
  2. Step 2: Convert to fraction form
    78,731.45/108,643.95 = 44,281.34/x
  3. Step 3: Cross multiply
    78,731.45x = 108,643.95 × 44,281.34
  4. Step 4: Simplify right side
    78,731.45x = 4,810,899,145.67
  5. Step 5: Solve for x
    x = 4,810,899,145.67/78,731.45
  6. Step 6: Final answer
    x = 61,105.18

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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.