Home / 56,018-77,306.46-30,869.12

Finding the Fourth Proportional to 56,018, 77,306.46 and 30,869.12

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Solution

The fourth proportional to 56,018, 77,306.46 and 30,869.12 is: 42,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,018 : 77,306.46 = 30,869.12 : x
  2. Step 2: Convert to fraction form
    56,018/77,306.46 = 30,869.12/x
  3. Step 3: Cross multiply
    56,018x = 77,306.46 × 30,869.12
  4. Step 4: Simplify right side
    56,018x = 2,386,382,390.52
  5. Step 5: Solve for x
    x = 2,386,382,390.52/56,018
  6. Step 6: Final answer
    x = 42,600.28

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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.