Home / 88,007.86-121,419.02-57,809.44

Finding the Fourth Proportional to 88,007.86, 121,419.02 and 57,809.44

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Solution

The fourth proportional to 88,007.86, 121,419.02 and 57,809.44 is: 79,756.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,007.86 : 121,419.02 = 57,809.44 : x
  2. Step 2: Convert to fraction form
    88,007.86/121,419.02 = 57,809.44/x
  3. Step 3: Cross multiply
    88,007.86x = 121,419.02 × 57,809.44
  4. Step 4: Simplify right side
    88,007.86x = 7,019,164,958.95
  5. Step 5: Solve for x
    x = 7,019,164,958.95/88,007.86
  6. Step 6: Final answer
    x = 79,756.12

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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.