Home / 78,412.13-108,214.08-44,420.89

Finding the Fourth Proportional to 78,412.13, 108,214.08 and 44,420.89

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Solution

The fourth proportional to 78,412.13, 108,214.08 and 44,420.89 is: 61,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,412.13 : 108,214.08 = 44,420.89 : x
  2. Step 2: Convert to fraction form
    78,412.13/108,214.08 = 44,420.89/x
  3. Step 3: Cross multiply
    78,412.13x = 108,214.08 × 44,420.89
  4. Step 4: Simplify right side
    78,412.13x = 4,806,965,744.13
  5. Step 5: Solve for x
    x = 4,806,965,744.13/78,412.13
  6. Step 6: Final answer
    x = 61,303.85

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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.