Home / 56,415.18-77,761.59-38,259.90

Finding the Fourth Proportional to 56,415.18, 77,761.59 and 38,259.90

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Solution

The fourth proportional to 56,415.18, 77,761.59 and 38,259.90 is: 52,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,415.18 : 77,761.59 = 38,259.90 : x
  2. Step 2: Convert to fraction form
    56,415.18/77,761.59 = 38,259.90/x
  3. Step 3: Cross multiply
    56,415.18x = 77,761.59 × 38,259.90
  4. Step 4: Simplify right side
    56,415.18x = 2,975,150,657.24
  5. Step 5: Solve for x
    x = 2,975,150,657.24/56,415.18
  6. Step 6: Final answer
    x = 52,736.70

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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.