Home / 79,535.16-109,715.10-48,891.60

Finding the Fourth Proportional to 79,535.16, 109,715.10 and 48,891.60

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Solution

The fourth proportional to 79,535.16, 109,715.10 and 48,891.60 is: 67,443.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,535.16 : 109,715.10 = 48,891.60 : x
  2. Step 2: Convert to fraction form
    79,535.16/109,715.10 = 48,891.60/x
  3. Step 3: Cross multiply
    79,535.16x = 109,715.10 × 48,891.60
  4. Step 4: Simplify right side
    79,535.16x = 5,364,146,783.16
  5. Step 5: Solve for x
    x = 5,364,146,783.16/79,535.16
  6. Step 6: Final answer
    x = 67,443.72

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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.