Home / 78,865.36-108,834.76-43,056.08

Finding the Fourth Proportional to 78,865.36, 108,834.76 and 43,056.08

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Solution

The fourth proportional to 78,865.36, 108,834.76 and 43,056.08 is: 59,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865.36 : 108,834.76 = 43,056.08 : x
  2. Step 2: Convert to fraction form
    78,865.36/108,834.76 = 43,056.08/x
  3. Step 3: Cross multiply
    78,865.36x = 108,834.76 × 43,056.08
  4. Step 4: Simplify right side
    78,865.36x = 4,685,998,133.34
  5. Step 5: Solve for x
    x = 4,685,998,133.34/78,865.36
  6. Step 6: Final answer
    x = 59,417.70

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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.