Home / 82,242.18-113,435.52-56,758.20

Finding the Fourth Proportional to 82,242.18, 113,435.52 and 56,758.20

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Solution

The fourth proportional to 82,242.18, 113,435.52 and 56,758.20 is: 78,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,242.18 : 113,435.52 = 56,758.20 : x
  2. Step 2: Convert to fraction form
    82,242.18/113,435.52 = 56,758.20/x
  3. Step 3: Cross multiply
    82,242.18x = 113,435.52 × 56,758.20
  4. Step 4: Simplify right side
    82,242.18x = 6,438,395,931.26
  5. Step 5: Solve for x
    x = 6,438,395,931.26/82,242.18
  6. Step 6: Final answer
    x = 78,285.81

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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.