Home / 78,864.36-108,833.38-43,055.08

Finding the Fourth Proportional to 78,864.36, 108,833.38 and 43,055.08

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Solution

The fourth proportional to 78,864.36, 108,833.38 and 43,055.08 is: 59,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,864.36 : 108,833.38 = 43,055.08 : x
  2. Step 2: Convert to fraction form
    78,864.36/108,833.38 = 43,055.08/x
  3. Step 3: Cross multiply
    78,864.36x = 108,833.38 × 43,055.08
  4. Step 4: Simplify right side
    78,864.36x = 4,685,829,882.57
  5. Step 5: Solve for x
    x = 4,685,829,882.57/78,864.36
  6. Step 6: Final answer
    x = 59,416.32

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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.