Home / 79,077.60-109,126.08-43,267.20

Finding the Fourth Proportional to 79,077.60, 109,126.08 and 43,267.20

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Solution

The fourth proportional to 79,077.60, 109,126.08 and 43,267.20 is: 59,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.60 : 109,126.08 = 43,267.20 : x
  2. Step 2: Convert to fraction form
    79,077.60/109,126.08 = 43,267.20/x
  3. Step 3: Cross multiply
    79,077.60x = 109,126.08 × 43,267.20
  4. Step 4: Simplify right side
    79,077.60x = 4,721,579,928.58
  5. Step 5: Solve for x
    x = 4,721,579,928.58/79,077.60
  6. Step 6: Final answer
    x = 59,708.18

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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.