Home / 91,921.44-126,848.21-56,171.28

Finding the Fourth Proportional to 91,921.44, 126,848.21 and 56,171.28

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Solution

The fourth proportional to 91,921.44, 126,848.21 and 56,171.28 is: 77,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,921.44 : 126,848.21 = 56,171.28 : x
  2. Step 2: Convert to fraction form
    91,921.44/126,848.21 = 56,171.28/x
  3. Step 3: Cross multiply
    91,921.44x = 126,848.21 × 56,171.28
  4. Step 4: Simplify right side
    91,921.44x = 7,125,226,040.55
  5. Step 5: Solve for x
    x = 7,125,226,040.55/91,921.44
  6. Step 6: Final answer
    x = 77,514.30

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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.