Home / 83,916.42-115,569.63-69,637.74

Finding the Fourth Proportional to 83,916.42, 115,569.63 and 69,637.74

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Solution

The fourth proportional to 83,916.42, 115,569.63 and 69,637.74 is: 95,905.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,916.42 : 115,569.63 = 69,637.74 : x
  2. Step 2: Convert to fraction form
    83,916.42/115,569.63 = 69,637.74/x
  3. Step 3: Cross multiply
    83,916.42x = 115,569.63 × 69,637.74
  4. Step 4: Simplify right side
    83,916.42x = 8,048,007,845.84
  5. Step 5: Solve for x
    x = 8,048,007,845.84/83,916.42
  6. Step 6: Final answer
    x = 95,905.04

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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.