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Finding the Fourth Proportional to 56,425.28, 77,803.07 and 35,980.07

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Solution

The fourth proportional to 56,425.28, 77,803.07 and 35,980.07 is: 49,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,425.28 : 77,803.07 = 35,980.07 : x
  2. Step 2: Convert to fraction form
    56,425.28/77,803.07 = 35,980.07/x
  3. Step 3: Cross multiply
    56,425.28x = 77,803.07 × 35,980.07
  4. Step 4: Simplify right side
    56,425.28x = 2,799,359,335.90
  5. Step 5: Solve for x
    x = 2,799,359,335.90/56,425.28
  6. Step 6: Final answer
    x = 49,611.80

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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.