Home / 51,567.68-77,356.92-21,988.64

Finding the Fourth Proportional to 51,567.68, 77,356.92 and 21,988.64

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Solution

The fourth proportional to 51,567.68, 77,356.92 and 21,988.64 is: 32,985.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,567.68 : 77,356.92 = 21,988.64 : x
  2. Step 2: Convert to fraction form
    51,567.68/77,356.92 = 21,988.64/x
  3. Step 3: Cross multiply
    51,567.68x = 77,356.92 × 21,988.64
  4. Step 4: Simplify right side
    51,567.68x = 1,700,973,465.39
  5. Step 5: Solve for x
    x = 1,700,973,465.39/51,567.68
  6. Step 6: Final answer
    x = 32,985.26

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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.