Home / 76,897.81-106,119.03-45,066.70

Finding the Fourth Proportional to 76,897.81, 106,119.03 and 45,066.70

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Solution

The fourth proportional to 76,897.81, 106,119.03 and 45,066.70 is: 62,192.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,897.81 : 106,119.03 = 45,066.70 : x
  2. Step 2: Convert to fraction form
    76,897.81/106,119.03 = 45,066.70/x
  3. Step 3: Cross multiply
    76,897.81x = 106,119.03 × 45,066.70
  4. Step 4: Simplify right side
    76,897.81x = 4,782,434,489.30
  5. Step 5: Solve for x
    x = 4,782,434,489.30/76,897.81
  6. Step 6: Final answer
    x = 62,192.08

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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.