Home / 60,390.07-90,178.43-49,318.72

Finding the Fourth Proportional to 60,390.07, 90,178.43 and 49,318.72

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Solution

The fourth proportional to 60,390.07, 90,178.43 and 49,318.72 is: 73,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,390.07 : 90,178.43 = 49,318.72 : x
  2. Step 2: Convert to fraction form
    60,390.07/90,178.43 = 49,318.72/x
  3. Step 3: Cross multiply
    60,390.07x = 90,178.43 × 49,318.72
  4. Step 4: Simplify right side
    60,390.07x = 4,447,484,739.21
  5. Step 5: Solve for x
    x = 4,447,484,739.21/60,390.07
  6. Step 6: Final answer
    x = 73,645.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.