Home / 60,680.16-91,041.60-31,111.92

Finding the Fourth Proportional to 60,680.16, 91,041.60 and 31,111.92

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Solution

The fourth proportional to 60,680.16, 91,041.60 and 31,111.92 is: 46,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,680.16 : 91,041.60 = 31,111.92 : x
  2. Step 2: Convert to fraction form
    60,680.16/91,041.60 = 31,111.92/x
  3. Step 3: Cross multiply
    60,680.16x = 91,041.60 × 31,111.92
  4. Step 4: Simplify right side
    60,680.16x = 2,832,478,975.87
  5. Step 5: Solve for x
    x = 2,832,478,975.87/60,680.16
  6. Step 6: Final answer
    x = 46,678.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.