Home / 78,427.19-108,229.14-44,435.59

Finding the Fourth Proportional to 78,427.19, 108,229.14 and 44,435.59

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Solution

The fourth proportional to 78,427.19, 108,229.14 and 44,435.59 is: 61,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,427.19 : 108,229.14 = 44,435.59 : x
  2. Step 2: Convert to fraction form
    78,427.19/108,229.14 = 44,435.59/x
  3. Step 3: Cross multiply
    78,427.19x = 108,229.14 × 44,435.59
  4. Step 4: Simplify right side
    78,427.19x = 4,809,225,420.52
  5. Step 5: Solve for x
    x = 4,809,225,420.52/78,427.19
  6. Step 6: Final answer
    x = 61,320.89

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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.