Home / 79,677.12-109,953.54-43,866.40

Finding the Fourth Proportional to 79,677.12, 109,953.54 and 43,866.40

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Solution

The fourth proportional to 79,677.12, 109,953.54 and 43,866.40 is: 60,535.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,677.12 : 109,953.54 = 43,866.40 : x
  2. Step 2: Convert to fraction form
    79,677.12/109,953.54 = 43,866.40/x
  3. Step 3: Cross multiply
    79,677.12x = 109,953.54 × 43,866.40
  4. Step 4: Simplify right side
    79,677.12x = 4,823,265,967.06
  5. Step 5: Solve for x
    x = 4,823,265,967.06/79,677.12
  6. Step 6: Final answer
    x = 60,535.14

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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.