Home / 77,975.61-116,942.65-21,812.24

Finding the Fourth Proportional to 77,975.61, 116,942.65 and 21,812.24

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Solution

The fourth proportional to 77,975.61, 116,942.65 and 21,812.24 is: 32,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,975.61 : 116,942.65 = 21,812.24 : x
  2. Step 2: Convert to fraction form
    77,975.61/116,942.65 = 21,812.24/x
  3. Step 3: Cross multiply
    77,975.61x = 116,942.65 × 21,812.24
  4. Step 4: Simplify right side
    77,975.61x = 2,550,781,148.04
  5. Step 5: Solve for x
    x = 2,550,781,148.04/77,975.61
  6. Step 6: Final answer
    x = 32,712.55

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1.5x scale

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.