Home / 76,106.08-105,031.92-42,582.88

Finding the Fourth Proportional to 76,106.08, 105,031.92 and 42,582.88

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Solution

The fourth proportional to 76,106.08, 105,031.92 and 42,582.88 is: 58,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,106.08 : 105,031.92 = 42,582.88 : x
  2. Step 2: Convert to fraction form
    76,106.08/105,031.92 = 42,582.88/x
  3. Step 3: Cross multiply
    76,106.08x = 105,031.92 × 42,582.88
  4. Step 4: Simplify right side
    76,106.08x = 4,472,561,645.53
  5. Step 5: Solve for x
    x = 4,472,561,645.53/76,106.08
  6. Step 6: Final answer
    x = 58,767.47

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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.