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Finding the Fourth Proportional to 91,900.77, 126,820.65 and 51,612.58

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Solution

The fourth proportional to 91,900.77, 126,820.65 and 51,612.58 is: 71,224.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900.77 : 126,820.65 = 51,612.58 : x
  2. Step 2: Convert to fraction form
    91,900.77/126,820.65 = 51,612.58/x
  3. Step 3: Cross multiply
    91,900.77x = 126,820.65 × 51,612.58
  4. Step 4: Simplify right side
    91,900.77x = 6,545,540,943.78
  5. Step 5: Solve for x
    x = 6,545,540,943.78/91,900.77
  6. Step 6: Final answer
    x = 71,224.01

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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.