Home / 47,965.12-66,187.04-26,742.40

Finding the Fourth Proportional to 47,965.12, 66,187.04 and 26,742.40

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Solution

The fourth proportional to 47,965.12, 66,187.04 and 26,742.40 is: 36,901.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,965.12 : 66,187.04 = 26,742.40 : x
  2. Step 2: Convert to fraction form
    47,965.12/66,187.04 = 26,742.40/x
  3. Step 3: Cross multiply
    47,965.12x = 66,187.04 × 26,742.40
  4. Step 4: Simplify right side
    47,965.12x = 1,770,000,298.50
  5. Step 5: Solve for x
    x = 1,770,000,298.50/47,965.12
  6. Step 6: Final answer
    x = 36,901.82

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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.