Home / 78,750.36-108,673.11-42,941.07

Finding the Fourth Proportional to 78,750.36, 108,673.11 and 42,941.07

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Solution

The fourth proportional to 78,750.36, 108,673.11 and 42,941.07 is: 59,257.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,750.36 : 108,673.11 = 42,941.07 : x
  2. Step 2: Convert to fraction form
    78,750.36/108,673.11 = 42,941.07/x
  3. Step 3: Cross multiply
    78,750.36x = 108,673.11 × 42,941.07
  4. Step 4: Simplify right side
    78,750.36x = 4,666,539,623.63
  5. Step 5: Solve for x
    x = 4,666,539,623.63/78,750.36
  6. Step 6: Final answer
    x = 59,257.38

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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.