Home / 56,025.26-77,312.90-30,531.11

Finding the Fourth Proportional to 56,025.26, 77,312.90 and 30,531.11

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Solution

The fourth proportional to 56,025.26, 77,312.90 and 30,531.11 is: 42,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,025.26 : 77,312.90 = 30,531.11 : x
  2. Step 2: Convert to fraction form
    56,025.26/77,312.90 = 30,531.11/x
  3. Step 3: Cross multiply
    56,025.26x = 77,312.90 × 30,531.11
  4. Step 4: Simplify right side
    56,025.26x = 2,360,448,654.32
  5. Step 5: Solve for x
    x = 2,360,448,654.32/56,025.26
  6. Step 6: Final answer
    x = 42,131.86

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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.