Home / 83,637.03-115,417.94-51,813.75

Finding the Fourth Proportional to 83,637.03, 115,417.94 and 51,813.75

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Solution

The fourth proportional to 83,637.03, 115,417.94 and 51,813.75 is: 71,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,637.03 : 115,417.94 = 51,813.75 : x
  2. Step 2: Convert to fraction form
    83,637.03/115,417.94 = 51,813.75/x
  3. Step 3: Cross multiply
    83,637.03x = 115,417.94 × 51,813.75
  4. Step 4: Simplify right side
    83,637.03x = 5,980,236,029.61
  5. Step 5: Solve for x
    x = 5,980,236,029.61/83,637.03
  6. Step 6: Final answer
    x = 71,502.25

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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.