Home / 76,569.71-105,657.01-42,569.65

Finding the Fourth Proportional to 76,569.71, 105,657.01 and 42,569.65

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Solution

The fourth proportional to 76,569.71, 105,657.01 and 42,569.65 is: 58,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,569.71 : 105,657.01 = 42,569.65 : x
  2. Step 2: Convert to fraction form
    76,569.71/105,657.01 = 42,569.65/x
  3. Step 3: Cross multiply
    76,569.71x = 105,657.01 × 42,569.65
  4. Step 4: Simplify right side
    76,569.71x = 4,497,781,961.39
  5. Step 5: Solve for x
    x = 4,497,781,961.39/76,569.71
  6. Step 6: Final answer
    x = 58,741.01

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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.