Home / 76,565.50-105,658.40-42,572.22

Finding the Fourth Proportional to 76,565.50, 105,658.40 and 42,572.22

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Solution

The fourth proportional to 76,565.50, 105,658.40 and 42,572.22 is: 58,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,565.50 : 105,658.40 = 42,572.22 : x
  2. Step 2: Convert to fraction form
    76,565.50/105,658.40 = 42,572.22/x
  3. Step 3: Cross multiply
    76,565.50x = 105,658.40 × 42,572.22
  4. Step 4: Simplify right side
    76,565.50x = 4,498,112,649.65
  5. Step 5: Solve for x
    x = 4,498,112,649.65/76,565.50
  6. Step 6: Final answer
    x = 58,748.56

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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.