Home / 78,475.32-108,266.22-48,236.40

Finding the Fourth Proportional to 78,475.32, 108,266.22 and 48,236.40

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Solution

The fourth proportional to 78,475.32, 108,266.22 and 48,236.40 is: 66,547.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,475.32 : 108,266.22 = 48,236.40 : x
  2. Step 2: Convert to fraction form
    78,475.32/108,266.22 = 48,236.40/x
  3. Step 3: Cross multiply
    78,475.32x = 108,266.22 × 48,236.40
  4. Step 4: Simplify right side
    78,475.32x = 5,222,372,694.41
  5. Step 5: Solve for x
    x = 5,222,372,694.41/78,475.32
  6. Step 6: Final answer
    x = 66,547.96

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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.