Home / 70,123.60-96,759.24-40,309.84

Finding the Fourth Proportional to 70,123.60, 96,759.24 and 40,309.84

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Solution

The fourth proportional to 70,123.60, 96,759.24 and 40,309.84 is: 55,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123.60 : 96,759.24 = 40,309.84 : x
  2. Step 2: Convert to fraction form
    70,123.60/96,759.24 = 40,309.84/x
  3. Step 3: Cross multiply
    70,123.60x = 96,759.24 × 40,309.84
  4. Step 4: Simplify right side
    70,123.60x = 3,900,349,482.92
  5. Step 5: Solve for x
    x = 3,900,349,482.92/70,123.60
  6. Step 6: Final answer
    x = 55,621.07

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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.