Home / 65,917.18-90,971.30-37,242.10

Finding the Fourth Proportional to 65,917.18, 90,971.30 and 37,242.10

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Solution

The fourth proportional to 65,917.18, 90,971.30 and 37,242.10 is: 51,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917.18 : 90,971.30 = 37,242.10 : x
  2. Step 2: Convert to fraction form
    65,917.18/90,971.30 = 37,242.10/x
  3. Step 3: Cross multiply
    65,917.18x = 90,971.30 × 37,242.10
  4. Step 4: Simplify right side
    65,917.18x = 3,387,962,537.65
  5. Step 5: Solve for x
    x = 3,387,962,537.65/65,917.18
  6. Step 6: Final answer
    x = 51,397.26

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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.