Home / 56,680.90-78,187.15-35,423.26

Finding the Fourth Proportional to 56,680.90, 78,187.15 and 35,423.26

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Solution

The fourth proportional to 56,680.90, 78,187.15 and 35,423.26 is: 48,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,680.90 : 78,187.15 = 35,423.26 : x
  2. Step 2: Convert to fraction form
    56,680.90/78,187.15 = 35,423.26/x
  3. Step 3: Cross multiply
    56,680.90x = 78,187.15 × 35,423.26
  4. Step 4: Simplify right side
    56,680.90x = 2,769,643,971.59
  5. Step 5: Solve for x
    x = 2,769,643,971.59/56,680.90
  6. Step 6: Final answer
    x = 48,863.80

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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.