Home / 51,547.42-71,139.75-28,886.05

Finding the Fourth Proportional to 51,547.42, 71,139.75 and 28,886.05

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Solution

The fourth proportional to 51,547.42, 71,139.75 and 28,886.05 is: 39,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,547.42 : 71,139.75 = 28,886.05 : x
  2. Step 2: Convert to fraction form
    51,547.42/71,139.75 = 28,886.05/x
  3. Step 3: Cross multiply
    51,547.42x = 71,139.75 × 28,886.05
  4. Step 4: Simplify right side
    51,547.42x = 2,054,946,375.49
  5. Step 5: Solve for x
    x = 2,054,946,375.49/51,547.42
  6. Step 6: Final answer
    x = 39,865.16

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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.