Home / 78,865.13-108,835.53-43,056.65

Finding the Fourth Proportional to 78,865.13, 108,835.53 and 43,056.65

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Solution

The fourth proportional to 78,865.13, 108,835.53 and 43,056.65 is: 59,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865.13 : 108,835.53 = 43,056.65 : x
  2. Step 2: Convert to fraction form
    78,865.13/108,835.53 = 43,056.65/x
  3. Step 3: Cross multiply
    78,865.13x = 108,835.53 × 43,056.65
  4. Step 4: Simplify right side
    78,865.13x = 4,686,093,322.77
  5. Step 5: Solve for x
    x = 4,686,093,322.77/78,865.13
  6. Step 6: Final answer
    x = 59,419.08

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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.