Home / 78,307.36-108,062.62-44,315.21

Finding the Fourth Proportional to 78,307.36, 108,062.62 and 44,315.21

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Solution

The fourth proportional to 78,307.36, 108,062.62 and 44,315.21 is: 61,154.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,307.36 : 108,062.62 = 44,315.21 : x
  2. Step 2: Convert to fraction form
    78,307.36/108,062.62 = 44,315.21/x
  3. Step 3: Cross multiply
    78,307.36x = 108,062.62 × 44,315.21
  4. Step 4: Simplify right side
    78,307.36x = 4,788,817,857.82
  5. Step 5: Solve for x
    x = 4,788,817,857.82/78,307.36
  6. Step 6: Final answer
    x = 61,154.12

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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.