Home / 78,285.04-108,032.54-42,474.76

Finding the Fourth Proportional to 78,285.04, 108,032.54 and 42,474.76

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Solution

The fourth proportional to 78,285.04, 108,032.54 and 42,474.76 is: 58,614.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,285.04 : 108,032.54 = 42,474.76 : x
  2. Step 2: Convert to fraction form
    78,285.04/108,032.54 = 42,474.76/x
  3. Step 3: Cross multiply
    78,285.04x = 108,032.54 × 42,474.76
  4. Step 4: Simplify right side
    78,285.04x = 4,588,656,208.69
  5. Step 5: Solve for x
    x = 4,588,656,208.69/78,285.04
  6. Step 6: Final answer
    x = 58,614.73

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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.