Home / 57,207.67-78,946.75-31,718.18

Finding the Fourth Proportional to 57,207.67, 78,946.75 and 31,718.18

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Solution

The fourth proportional to 57,207.67, 78,946.75 and 31,718.18 is: 43,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,207.67 : 78,946.75 = 31,718.18 : x
  2. Step 2: Convert to fraction form
    57,207.67/78,946.75 = 31,718.18/x
  3. Step 3: Cross multiply
    57,207.67x = 78,946.75 × 31,718.18
  4. Step 4: Simplify right side
    57,207.67x = 2,504,047,463.93
  5. Step 5: Solve for x
    x = 2,504,047,463.93/57,207.67
  6. Step 6: Final answer
    x = 43,771.19

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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.