Home / 56,486.11-77,950.83-31,335.61

Finding the Fourth Proportional to 56,486.11, 77,950.83 and 31,335.61

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Solution

The fourth proportional to 56,486.11, 77,950.83 and 31,335.61 is: 43,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,486.11 : 77,950.83 = 31,335.61 : x
  2. Step 2: Convert to fraction form
    56,486.11/77,950.83 = 31,335.61/x
  3. Step 3: Cross multiply
    56,486.11x = 77,950.83 × 31,335.61
  4. Step 4: Simplify right side
    56,486.11x = 2,442,636,788.71
  5. Step 5: Solve for x
    x = 2,442,636,788.71/56,486.11
  6. Step 6: Final answer
    x = 43,243.14

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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.