Home / 88,008.86-121,420.39-57,810.44

Finding the Fourth Proportional to 88,008.86, 121,420.39 and 57,810.44

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Solution

The fourth proportional to 88,008.86, 121,420.39 and 57,810.44 is: 79,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,008.86 : 121,420.39 = 57,810.44 : x
  2. Step 2: Convert to fraction form
    88,008.86/121,420.39 = 57,810.44/x
  3. Step 3: Cross multiply
    88,008.86x = 121,420.39 × 57,810.44
  4. Step 4: Simplify right side
    88,008.86x = 7,019,366,170.87
  5. Step 5: Solve for x
    x = 7,019,366,170.87/88,008.86
  6. Step 6: Final answer
    x = 79,757.49

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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.