Home / 76,966.64-106,212.95-42,975.71

Finding the Fourth Proportional to 76,966.64, 106,212.95 and 42,975.71

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Solution

The fourth proportional to 76,966.64, 106,212.95 and 42,975.71 is: 59,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966.64 : 106,212.95 = 42,975.71 : x
  2. Step 2: Convert to fraction form
    76,966.64/106,212.95 = 42,975.71/x
  3. Step 3: Cross multiply
    76,966.64x = 106,212.95 × 42,975.71
  4. Step 4: Simplify right side
    76,966.64x = 4,564,577,310.42
  5. Step 5: Solve for x
    x = 4,564,577,310.42/76,966.64
  6. Step 6: Final answer
    x = 59,305.92

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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.