Home / 78,693.18-118,062.75-25,383.98

Finding the Fourth Proportional to 78,693.18, 118,062.75 and 25,383.98

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Solution

The fourth proportional to 78,693.18, 118,062.75 and 25,383.98 is: 38,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,693.18 : 118,062.75 = 25,383.98 : x
  2. Step 2: Convert to fraction form
    78,693.18/118,062.75 = 25,383.98/x
  3. Step 3: Cross multiply
    78,693.18x = 118,062.75 × 25,383.98
  4. Step 4: Simplify right side
    78,693.18x = 2,996,901,767.51
  5. Step 5: Solve for x
    x = 2,996,901,767.51/78,693.18
  6. Step 6: Final answer
    x = 38,083.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.