Home / 75,133.71-112,700.18-30,760.45

Finding the Fourth Proportional to 75,133.71, 112,700.18 and 30,760.45

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Solution

The fourth proportional to 75,133.71, 112,700.18 and 30,760.45 is: 46,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,133.71 : 112,700.18 = 30,760.45 : x
  2. Step 2: Convert to fraction form
    75,133.71/112,700.18 = 30,760.45/x
  3. Step 3: Cross multiply
    75,133.71x = 112,700.18 × 30,760.45
  4. Step 4: Simplify right side
    75,133.71x = 3,466,708,047.03
  5. Step 5: Solve for x
    x = 3,466,708,047.03/75,133.71
  6. Step 6: Final answer
    x = 46,140.51

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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.