Home / 75,320.55-112,981.47-19,160.71

Finding the Fourth Proportional to 75,320.55, 112,981.47 and 19,160.71

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Solution

The fourth proportional to 75,320.55, 112,981.47 and 19,160.71 is: 28,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,320.55 : 112,981.47 = 19,160.71 : x
  2. Step 2: Convert to fraction form
    75,320.55/112,981.47 = 19,160.71/x
  3. Step 3: Cross multiply
    75,320.55x = 112,981.47 × 19,160.71
  4. Step 4: Simplify right side
    75,320.55x = 2,164,805,182.04
  5. Step 5: Solve for x
    x = 2,164,805,182.04/75,320.55
  6. Step 6: Final answer
    x = 28,741.23

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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.