Home / 78,412.34-108,205.50-44,420.13

Finding the Fourth Proportional to 78,412.34, 108,205.50 and 44,420.13

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Solution

The fourth proportional to 78,412.34, 108,205.50 and 44,420.13 is: 61,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,412.34 : 108,205.50 = 44,420.13 : x
  2. Step 2: Convert to fraction form
    78,412.34/108,205.50 = 44,420.13/x
  3. Step 3: Cross multiply
    78,412.34x = 108,205.50 × 44,420.13
  4. Step 4: Simplify right side
    78,412.34x = 4,806,502,579.60
  5. Step 5: Solve for x
    x = 4,806,502,579.60/78,412.34
  6. Step 6: Final answer
    x = 61,297.78

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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.