Home / 65,725.68-90,595.18-51,360.55

Finding the Fourth Proportional to 65,725.68, 90,595.18 and 51,360.55

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Solution

The fourth proportional to 65,725.68, 90,595.18 and 51,360.55 is: 70,794.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,725.68 : 90,595.18 = 51,360.55 : x
  2. Step 2: Convert to fraction form
    65,725.68/90,595.18 = 51,360.55/x
  3. Step 3: Cross multiply
    65,725.68x = 90,595.18 × 51,360.55
  4. Step 4: Simplify right side
    65,725.68x = 4,653,017,690.77
  5. Step 5: Solve for x
    x = 4,653,017,690.77/65,725.68
  6. Step 6: Final answer
    x = 70,794.52

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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.