Home / 56,532.30-78,013.71-31,381.26

Finding the Fourth Proportional to 56,532.30, 78,013.71 and 31,381.26

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Solution

The fourth proportional to 56,532.30, 78,013.71 and 31,381.26 is: 43,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,532.30 : 78,013.71 = 31,381.26 : x
  2. Step 2: Convert to fraction form
    56,532.30/78,013.71 = 31,381.26/x
  3. Step 3: Cross multiply
    56,532.30x = 78,013.71 × 31,381.26
  4. Step 4: Simplify right side
    56,532.30x = 2,448,168,517.07
  5. Step 5: Solve for x
    x = 2,448,168,517.07/56,532.30
  6. Step 6: Final answer
    x = 43,305.66

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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.