Home / 78,827.33-108,784.02-43,019.64

Finding the Fourth Proportional to 78,827.33, 108,784.02 and 43,019.64

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Solution

The fourth proportional to 78,827.33, 108,784.02 and 43,019.64 is: 59,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,827.33 : 108,784.02 = 43,019.64 : x
  2. Step 2: Convert to fraction form
    78,827.33/108,784.02 = 43,019.64/x
  3. Step 3: Cross multiply
    78,827.33x = 108,784.02 × 43,019.64
  4. Step 4: Simplify right side
    78,827.33x = 4,679,849,378.15
  5. Step 5: Solve for x
    x = 4,679,849,378.15/78,827.33
  6. Step 6: Final answer
    x = 59,368.36

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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.