Home / 56,812.08-78,442.38-36,680.70

Finding the Fourth Proportional to 56,812.08, 78,442.38 and 36,680.70

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Solution

The fourth proportional to 56,812.08, 78,442.38 and 36,680.70 is: 50,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,812.08 : 78,442.38 = 36,680.70 : x
  2. Step 2: Convert to fraction form
    56,812.08/78,442.38 = 36,680.70/x
  3. Step 3: Cross multiply
    56,812.08x = 78,442.38 × 36,680.70
  4. Step 4: Simplify right side
    56,812.08x = 2,877,321,408.07
  5. Step 5: Solve for x
    x = 2,877,321,408.07/56,812.08
  6. Step 6: Final answer
    x = 50,646.30

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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.