Home / 56,920.38-78,551.36-31,426.66

Finding the Fourth Proportional to 56,920.38, 78,551.36 and 31,426.66

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Solution

The fourth proportional to 56,920.38, 78,551.36 and 31,426.66 is: 43,369.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.38 : 78,551.36 = 31,426.66 : x
  2. Step 2: Convert to fraction form
    56,920.38/78,551.36 = 31,426.66/x
  3. Step 3: Cross multiply
    56,920.38x = 78,551.36 × 31,426.66
  4. Step 4: Simplify right side
    56,920.38x = 2,468,606,883.26
  5. Step 5: Solve for x
    x = 2,468,606,883.26/56,920.38
  6. Step 6: Final answer
    x = 43,369.47

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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.