Home / 72,017.28-99,356.13-45,112.95

Finding the Fourth Proportional to 72,017.28, 99,356.13 and 45,112.95

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Solution

The fourth proportional to 72,017.28, 99,356.13 and 45,112.95 is: 62,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,017.28 : 99,356.13 = 45,112.95 : x
  2. Step 2: Convert to fraction form
    72,017.28/99,356.13 = 45,112.95/x
  3. Step 3: Cross multiply
    72,017.28x = 99,356.13 × 45,112.95
  4. Step 4: Simplify right side
    72,017.28x = 4,482,248,124.88
  5. Step 5: Solve for x
    x = 4,482,248,124.88/72,017.28
  6. Step 6: Final answer
    x = 62,238.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.