Home / 56,920.55-78,548.29-31,426.36

Finding the Fourth Proportional to 56,920.55, 78,548.29 and 31,426.36

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Solution

The fourth proportional to 56,920.55, 78,548.29 and 31,426.36 is: 43,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.55 : 78,548.29 = 31,426.36 : x
  2. Step 2: Convert to fraction form
    56,920.55/78,548.29 = 31,426.36/x
  3. Step 3: Cross multiply
    56,920.55x = 78,548.29 × 31,426.36
  4. Step 4: Simplify right side
    56,920.55x = 2,468,486,563.99
  5. Step 5: Solve for x
    x = 2,468,486,563.99/56,920.55
  6. Step 6: Final answer
    x = 43,367.23

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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.