Home / 75,995.32-113,988.66-20,587

Finding the Fourth Proportional to 75,995.32, 113,988.66 and 20,587

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Solution

The fourth proportional to 75,995.32, 113,988.66 and 20,587 is: 30,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,995.32 : 113,988.66 = 20,587 : x
  2. Step 2: Convert to fraction form
    75,995.32/113,988.66 = 20,587/x
  3. Step 3: Cross multiply
    75,995.32x = 113,988.66 × 20,587
  4. Step 4: Simplify right side
    75,995.32x = 2,346,684,543.42
  5. Step 5: Solve for x
    x = 2,346,684,543.42/75,995.32
  6. Step 6: Final answer
    x = 30,879.33

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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.