Home / 55,302.85-76,314.64-31,426.21

Finding the Fourth Proportional to 55,302.85, 76,314.64 and 31,426.21

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Solution

The fourth proportional to 55,302.85, 76,314.64 and 31,426.21 is: 43,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,302.85 : 76,314.64 = 31,426.21 : x
  2. Step 2: Convert to fraction form
    55,302.85/76,314.64 = 31,426.21/x
  3. Step 3: Cross multiply
    55,302.85x = 76,314.64 × 31,426.21
  4. Step 4: Simplify right side
    55,302.85x = 2,398,279,902.71
  5. Step 5: Solve for x
    x = 2,398,279,902.71/55,302.85
  6. Step 6: Final answer
    x = 43,366.30

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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.