Home / 75,748.89-104,722.43-56,853.21

Finding the Fourth Proportional to 75,748.89, 104,722.43 and 56,853.21

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Solution

The fourth proportional to 75,748.89, 104,722.43 and 56,853.21 is: 78,599.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,748.89 : 104,722.43 = 56,853.21 : x
  2. Step 2: Convert to fraction form
    75,748.89/104,722.43 = 56,853.21/x
  3. Step 3: Cross multiply
    75,748.89x = 104,722.43 × 56,853.21
  4. Step 4: Simplify right side
    75,748.89x = 5,953,806,020.23
  5. Step 5: Solve for x
    x = 5,953,806,020.23/75,748.89
  6. Step 6: Final answer
    x = 78,599.25

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1.5x scale

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.