Home / 51,750.77-77,656.28-21,762.84

Finding the Fourth Proportional to 51,750.77, 77,656.28 and 21,762.84

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Solution

The fourth proportional to 51,750.77, 77,656.28 and 21,762.84 is: 32,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,750.77 : 77,656.28 = 21,762.84 : x
  2. Step 2: Convert to fraction form
    51,750.77/77,656.28 = 21,762.84/x
  3. Step 3: Cross multiply
    51,750.77x = 77,656.28 × 21,762.84
  4. Step 4: Simplify right side
    51,750.77x = 1,690,021,196.64
  5. Step 5: Solve for x
    x = 1,690,021,196.64/51,750.77
  6. Step 6: Final answer
    x = 32,656.93

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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.