Home / 78,703.02-108,610.26-42,893.07

Finding the Fourth Proportional to 78,703.02, 108,610.26 and 42,893.07

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Solution

The fourth proportional to 78,703.02, 108,610.26 and 42,893.07 is: 59,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,703.02 : 108,610.26 = 42,893.07 : x
  2. Step 2: Convert to fraction form
    78,703.02/108,610.26 = 42,893.07/x
  3. Step 3: Cross multiply
    78,703.02x = 108,610.26 × 42,893.07
  4. Step 4: Simplify right side
    78,703.02x = 4,658,627,484.90
  5. Step 5: Solve for x
    x = 4,658,627,484.90/78,703.02
  6. Step 6: Final answer
    x = 59,192.49

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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.