Home / 76,327.01-105,330.57-42,335.56

Finding the Fourth Proportional to 76,327.01, 105,330.57 and 42,335.56

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Solution

The fourth proportional to 76,327.01, 105,330.57 and 42,335.56 is: 58,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,327.01 : 105,330.57 = 42,335.56 : x
  2. Step 2: Convert to fraction form
    76,327.01/105,330.57 = 42,335.56/x
  3. Step 3: Cross multiply
    76,327.01x = 105,330.57 × 42,335.56
  4. Step 4: Simplify right side
    76,327.01x = 4,459,228,402.74
  5. Step 5: Solve for x
    x = 4,459,228,402.74/76,327.01
  6. Step 6: Final answer
    x = 58,422.68

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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.