Home / 83,718.36-115,502.76-51,875.64

Finding the Fourth Proportional to 83,718.36, 115,502.76 and 51,875.64

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Solution

The fourth proportional to 83,718.36, 115,502.76 and 51,875.64 is: 71,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,718.36 : 115,502.76 = 51,875.64 : x
  2. Step 2: Convert to fraction form
    83,718.36/115,502.76 = 51,875.64/x
  3. Step 3: Cross multiply
    83,718.36x = 115,502.76 × 51,875.64
  4. Step 4: Simplify right side
    83,718.36x = 5,991,779,596.77
  5. Step 5: Solve for x
    x = 5,991,779,596.77/83,718.36
  6. Step 6: Final answer
    x = 71,570.68

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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.