Home / 88,322.86-121,838.23-61,418.66

Finding the Fourth Proportional to 88,322.86, 121,838.23 and 61,418.66

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Solution

The fourth proportional to 88,322.86, 121,838.23 and 61,418.66 is: 84,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,322.86 : 121,838.23 = 61,418.66 : x
  2. Step 2: Convert to fraction form
    88,322.86/121,838.23 = 61,418.66/x
  3. Step 3: Cross multiply
    88,322.86x = 121,838.23 × 61,418.66
  4. Step 4: Simplify right side
    88,322.86x = 7,483,139,945.47
  5. Step 5: Solve for x
    x = 7,483,139,945.47/88,322.86
  6. Step 6: Final answer
    x = 84,724.84

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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.