Home / 76,320.75-105,318.96-42,326.55

Finding the Fourth Proportional to 76,320.75, 105,318.96 and 42,326.55

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Solution

The fourth proportional to 76,320.75, 105,318.96 and 42,326.55 is: 58,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,320.75 : 105,318.96 = 42,326.55 : x
  2. Step 2: Convert to fraction form
    76,320.75/105,318.96 = 42,326.55/x
  3. Step 3: Cross multiply
    76,320.75x = 105,318.96 × 42,326.55
  4. Step 4: Simplify right side
    76,320.75x = 4,457,788,226.39
  5. Step 5: Solve for x
    x = 4,457,788,226.39/76,320.75
  6. Step 6: Final answer
    x = 58,408.60

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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.