Home / 76,344.67-105,355.91-42,353.83

Finding the Fourth Proportional to 76,344.67, 105,355.91 and 42,353.83

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Solution

The fourth proportional to 76,344.67, 105,355.91 and 42,353.83 is: 58,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,344.67 : 105,355.91 = 42,353.83 : x
  2. Step 2: Convert to fraction form
    76,344.67/105,355.91 = 42,353.83/x
  3. Step 3: Cross multiply
    76,344.67x = 105,355.91 × 42,353.83
  4. Step 4: Simplify right side
    76,344.67x = 4,462,226,301.64
  5. Step 5: Solve for x
    x = 4,462,226,301.64/76,344.67
  6. Step 6: Final answer
    x = 58,448.43

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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.