Home / 91,731.09-126,602.74-55,941.86

Finding the Fourth Proportional to 91,731.09, 126,602.74 and 55,941.86

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Solution

The fourth proportional to 91,731.09, 126,602.74 and 55,941.86 is: 77,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,731.09 : 126,602.74 = 55,941.86 : x
  2. Step 2: Convert to fraction form
    91,731.09/126,602.74 = 55,941.86/x
  3. Step 3: Cross multiply
    91,731.09x = 126,602.74 × 55,941.86
  4. Step 4: Simplify right side
    91,731.09x = 7,082,392,528.52
  5. Step 5: Solve for x
    x = 7,082,392,528.52/91,731.09
  6. Step 6: Final answer
    x = 77,208.20

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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.