Home / 88,193.51-121,705.89-47,908.56

Finding the Fourth Proportional to 88,193.51, 121,705.89 and 47,908.56

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Solution

The fourth proportional to 88,193.51, 121,705.89 and 47,908.56 is: 66,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,193.51 : 121,705.89 = 47,908.56 : x
  2. Step 2: Convert to fraction form
    88,193.51/121,705.89 = 47,908.56/x
  3. Step 3: Cross multiply
    88,193.51x = 121,705.89 × 47,908.56
  4. Step 4: Simplify right side
    88,193.51x = 5,830,754,479.64
  5. Step 5: Solve for x
    x = 5,830,754,479.64/88,193.51
  6. Step 6: Final answer
    x = 66,113.19

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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.