Home / 75,960.10-113,946.63-19,807.66

Finding the Fourth Proportional to 75,960.10, 113,946.63 and 19,807.66

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Solution

The fourth proportional to 75,960.10, 113,946.63 and 19,807.66 is: 29,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,960.10 : 113,946.63 = 19,807.66 : x
  2. Step 2: Convert to fraction form
    75,960.10/113,946.63 = 19,807.66/x
  3. Step 3: Cross multiply
    75,960.10x = 113,946.63 × 19,807.66
  4. Step 4: Simplify right side
    75,960.10x = 2,257,016,105.19
  5. Step 5: Solve for x
    x = 2,257,016,105.19/75,960.10
  6. Step 6: Final answer
    x = 29,713.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.