Home / 51,139.76-70,567.14-28,473.52

Finding the Fourth Proportional to 51,139.76, 70,567.14 and 28,473.52

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Solution

The fourth proportional to 51,139.76, 70,567.14 and 28,473.52 is: 39,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,139.76 : 70,567.14 = 28,473.52 : x
  2. Step 2: Convert to fraction form
    51,139.76/70,567.14 = 28,473.52/x
  3. Step 3: Cross multiply
    51,139.76x = 70,567.14 × 28,473.52
  4. Step 4: Simplify right side
    51,139.76x = 2,009,294,872.13
  5. Step 5: Solve for x
    x = 2,009,294,872.13/51,139.76
  6. Step 6: Final answer
    x = 39,290.27

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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.