Home / 51,345.68-70,856.26-28,685.03

Finding the Fourth Proportional to 51,345.68, 70,856.26 and 28,685.03

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Solution

The fourth proportional to 51,345.68, 70,856.26 and 28,685.03 is: 39,584.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.68 : 70,856.26 = 28,685.03 : x
  2. Step 2: Convert to fraction form
    51,345.68/70,856.26 = 28,685.03/x
  3. Step 3: Cross multiply
    51,345.68x = 70,856.26 × 28,685.03
  4. Step 4: Simplify right side
    51,345.68x = 2,032,513,943.79
  5. Step 5: Solve for x
    x = 2,032,513,943.79/51,345.68
  6. Step 6: Final answer
    x = 39,584.91

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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.