Home / 91,823.04-126,714.24-54,090.72

Finding the Fourth Proportional to 91,823.04, 126,714.24 and 54,090.72

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Solution

The fourth proportional to 91,823.04, 126,714.24 and 54,090.72 is: 74,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,823.04 : 126,714.24 = 54,090.72 : x
  2. Step 2: Convert to fraction form
    91,823.04/126,714.24 = 54,090.72/x
  3. Step 3: Cross multiply
    91,823.04x = 126,714.24 × 54,090.72
  4. Step 4: Simplify right side
    91,823.04x = 6,854,064,475.85
  5. Step 5: Solve for x
    x = 6,854,064,475.85/91,823.04
  6. Step 6: Final answer
    x = 74,644.28

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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.