Home / 42,718.52-64,041.30-30,199.16

Finding the Fourth Proportional to 42,718.52, 64,041.30 and 30,199.16

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Solution

The fourth proportional to 42,718.52, 64,041.30 and 30,199.16 is: 45,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,718.52 : 64,041.30 = 30,199.16 : x
  2. Step 2: Convert to fraction form
    42,718.52/64,041.30 = 30,199.16/x
  3. Step 3: Cross multiply
    42,718.52x = 64,041.30 × 30,199.16
  4. Step 4: Simplify right side
    42,718.52x = 1,933,993,145.10
  5. Step 5: Solve for x
    x = 1,933,993,145.10/42,718.52
  6. Step 6: Final answer
    x = 45,272.95

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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.