Home / 75,152.19-112,727.52-18,991.17

Finding the Fourth Proportional to 75,152.19, 112,727.52 and 18,991.17

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Solution

The fourth proportional to 75,152.19, 112,727.52 and 18,991.17 is: 28,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,152.19 : 112,727.52 = 18,991.17 : x
  2. Step 2: Convert to fraction form
    75,152.19/112,727.52 = 18,991.17/x
  3. Step 3: Cross multiply
    75,152.19x = 112,727.52 × 18,991.17
  4. Step 4: Simplify right side
    75,152.19x = 2,140,827,496.00
  5. Step 5: Solve for x
    x = 2,140,827,496.00/75,152.19
  6. Step 6: Final answer
    x = 28,486.56

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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.