Home / 91,523.20-126,303.36-55,714.72

Finding the Fourth Proportional to 91,523.20, 126,303.36 and 55,714.72

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Solution

The fourth proportional to 91,523.20, 126,303.36 and 55,714.72 is: 76,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,523.20 : 126,303.36 = 55,714.72 : x
  2. Step 2: Convert to fraction form
    91,523.20/126,303.36 = 55,714.72/x
  3. Step 3: Cross multiply
    91,523.20x = 126,303.36 × 55,714.72
  4. Step 4: Simplify right side
    91,523.20x = 7,036,956,337.46
  5. Step 5: Solve for x
    x = 7,036,956,337.46/91,523.20
  6. Step 6: Final answer
    x = 76,887.13

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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.