Home / 78,417.11-108,215.80-44,431.84

Finding the Fourth Proportional to 78,417.11, 108,215.80 and 44,431.84

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Solution

The fourth proportional to 78,417.11, 108,215.80 and 44,431.84 is: 61,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417.11 : 108,215.80 = 44,431.84 : x
  2. Step 2: Convert to fraction form
    78,417.11/108,215.80 = 44,431.84/x
  3. Step 3: Cross multiply
    78,417.11x = 108,215.80 × 44,431.84
  4. Step 4: Simplify right side
    78,417.11x = 4,808,227,135.26
  5. Step 5: Solve for x
    x = 4,808,227,135.26/78,417.11
  6. Step 6: Final answer
    x = 61,316.04

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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.