Home / 45,264.47-67,870.39-30,288.71

Finding the Fourth Proportional to 45,264.47, 67,870.39 and 30,288.71

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Solution

The fourth proportional to 45,264.47, 67,870.39 and 30,288.71 is: 45,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,264.47 : 67,870.39 = 30,288.71 : x
  2. Step 2: Convert to fraction form
    45,264.47/67,870.39 = 30,288.71/x
  3. Step 3: Cross multiply
    45,264.47x = 67,870.39 × 30,288.71
  4. Step 4: Simplify right side
    45,264.47x = 2,055,706,069.50
  5. Step 5: Solve for x
    x = 2,055,706,069.50/45,264.47
  6. Step 6: Final answer
    x = 45,415.45

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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.