Home / 112,423.80-168,664.86-59,790

Finding the Fourth Proportional to 112,423.80, 168,664.86 and 59,790

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Solution

The fourth proportional to 112,423.80, 168,664.86 and 59,790 is: 89,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,423.80 : 168,664.86 = 59,790 : x
  2. Step 2: Convert to fraction form
    112,423.80/168,664.86 = 59,790/x
  3. Step 3: Cross multiply
    112,423.80x = 168,664.86 × 59,790
  4. Step 4: Simplify right side
    112,423.80x = 10,084,471,979.40
  5. Step 5: Solve for x
    x = 10,084,471,979.40/112,423.80
  6. Step 6: Final answer
    x = 89,700.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.