Home / 56,218.68-77,582.79-30,726.12

Finding the Fourth Proportional to 56,218.68, 77,582.79 and 30,726.12

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Solution

The fourth proportional to 56,218.68, 77,582.79 and 30,726.12 is: 42,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.68 : 77,582.79 = 30,726.12 : x
  2. Step 2: Convert to fraction form
    56,218.68/77,582.79 = 30,726.12/x
  3. Step 3: Cross multiply
    56,218.68x = 77,582.79 × 30,726.12
  4. Step 4: Simplify right side
    56,218.68x = 2,383,818,115.47
  5. Step 5: Solve for x
    x = 2,383,818,115.47/56,218.68
  6. Step 6: Final answer
    x = 42,402.60

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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.