Home / 76,557.65-105,649.46-42,565.07

Finding the Fourth Proportional to 76,557.65, 105,649.46 and 42,565.07

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Solution

The fourth proportional to 76,557.65, 105,649.46 and 42,565.07 is: 58,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,557.65 : 105,649.46 = 42,565.07 : x
  2. Step 2: Convert to fraction form
    76,557.65/105,649.46 = 42,565.07/x
  3. Step 3: Cross multiply
    76,557.65x = 105,649.46 × 42,565.07
  4. Step 4: Simplify right side
    76,557.65x = 4,496,975,919.29
  5. Step 5: Solve for x
    x = 4,496,975,919.29/76,557.65
  6. Step 6: Final answer
    x = 58,739.74

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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.