Home / 88,333.12-121,859.50-52,502.77

Finding the Fourth Proportional to 88,333.12, 121,859.50 and 52,502.77

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Solution

The fourth proportional to 88,333.12, 121,859.50 and 52,502.77 is: 72,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,333.12 : 121,859.50 = 52,502.77 : x
  2. Step 2: Convert to fraction form
    88,333.12/121,859.50 = 52,502.77/x
  3. Step 3: Cross multiply
    88,333.12x = 121,859.50 × 52,502.77
  4. Step 4: Simplify right side
    88,333.12x = 6,397,961,300.82
  5. Step 5: Solve for x
    x = 6,397,961,300.82/88,333.12
  6. Step 6: Final answer
    x = 72,429.93

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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.