Home / 78,491.42-108,280.09-46,637.76

Finding the Fourth Proportional to 78,491.42, 108,280.09 and 46,637.76

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Solution

The fourth proportional to 78,491.42, 108,280.09 and 46,637.76 is: 64,337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,491.42 : 108,280.09 = 46,637.76 : x
  2. Step 2: Convert to fraction form
    78,491.42/108,280.09 = 46,637.76/x
  3. Step 3: Cross multiply
    78,491.42x = 108,280.09 × 46,637.76
  4. Step 4: Simplify right side
    78,491.42x = 5,049,940,850.20
  5. Step 5: Solve for x
    x = 5,049,940,850.20/78,491.42
  6. Step 6: Final answer
    x = 64,337.49

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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.