Home / 55,981.49-77,251.61-30,826.13

Finding the Fourth Proportional to 55,981.49, 77,251.61 and 30,826.13

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Solution

The fourth proportional to 55,981.49, 77,251.61 and 30,826.13 is: 42,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,981.49 : 77,251.61 = 30,826.13 : x
  2. Step 2: Convert to fraction form
    55,981.49/77,251.61 = 30,826.13/x
  3. Step 3: Cross multiply
    55,981.49x = 77,251.61 × 30,826.13
  4. Step 4: Simplify right side
    55,981.49x = 2,381,368,018.44
  5. Step 5: Solve for x
    x = 2,381,368,018.44/55,981.49
  6. Step 6: Final answer
    x = 42,538.49

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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.