Home / 75,734.37-104,619.51-71,748.63

Finding the Fourth Proportional to 75,734.37, 104,619.51 and 71,748.63

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Solution

The fourth proportional to 75,734.37, 104,619.51 and 71,748.63 is: 99,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,734.37 : 104,619.51 = 71,748.63 : x
  2. Step 2: Convert to fraction form
    75,734.37/104,619.51 = 71,748.63/x
  3. Step 3: Cross multiply
    75,734.37x = 104,619.51 × 71,748.63
  4. Step 4: Simplify right side
    75,734.37x = 7,506,306,513.77
  5. Step 5: Solve for x
    x = 7,506,306,513.77/75,734.37
  6. Step 6: Final answer
    x = 99,113.61

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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.