Home / 76,330.45-105,332.29-42,335.93

Finding the Fourth Proportional to 76,330.45, 105,332.29 and 42,335.93

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Solution

The fourth proportional to 76,330.45, 105,332.29 and 42,335.93 is: 58,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,330.45 : 105,332.29 = 42,335.93 : x
  2. Step 2: Convert to fraction form
    76,330.45/105,332.29 = 42,335.93/x
  3. Step 3: Cross multiply
    76,330.45x = 105,332.29 × 42,335.93
  4. Step 4: Simplify right side
    76,330.45x = 4,459,340,456.18
  5. Step 5: Solve for x
    x = 4,459,340,456.18/76,330.45
  6. Step 6: Final answer
    x = 58,421.51

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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.