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Finding the Fourth Proportional to 57,547.65, 86,307.80 and 21,995.92

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Solution

The fourth proportional to 57,547.65, 86,307.80 and 21,995.92 is: 32,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,547.65 : 86,307.80 = 21,995.92 : x
  2. Step 2: Convert to fraction form
    57,547.65/86,307.80 = 21,995.92/x
  3. Step 3: Cross multiply
    57,547.65x = 86,307.80 × 21,995.92
  4. Step 4: Simplify right side
    57,547.65x = 1,898,419,100.33
  5. Step 5: Solve for x
    x = 1,898,419,100.33/57,547.65
  6. Step 6: Final answer
    x = 32,988.65

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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.