Home / 45,756.71-63,125.64-28,755.51

Finding the Fourth Proportional to 45,756.71, 63,125.64 and 28,755.51

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Solution

The fourth proportional to 45,756.71, 63,125.64 and 28,755.51 is: 39,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,756.71 : 63,125.64 = 28,755.51 : x
  2. Step 2: Convert to fraction form
    45,756.71/63,125.64 = 28,755.51/x
  3. Step 3: Cross multiply
    45,756.71x = 63,125.64 × 28,755.51
  4. Step 4: Simplify right side
    45,756.71x = 1,815,209,972.28
  5. Step 5: Solve for x
    x = 1,815,209,972.28/45,756.71
  6. Step 6: Final answer
    x = 39,670.90

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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.