Home / 83,718.28-115,533.15-45,479.35

Finding the Fourth Proportional to 83,718.28, 115,533.15 and 45,479.35

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Solution

The fourth proportional to 83,718.28, 115,533.15 and 45,479.35 is: 62,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,718.28 : 115,533.15 = 45,479.35 : x
  2. Step 2: Convert to fraction form
    83,718.28/115,533.15 = 45,479.35/x
  3. Step 3: Cross multiply
    83,718.28x = 115,533.15 × 45,479.35
  4. Step 4: Simplify right side
    83,718.28x = 5,254,372,565.45
  5. Step 5: Solve for x
    x = 5,254,372,565.45/83,718.28
  6. Step 6: Final answer
    x = 62,762.55

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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.