Home / 78,707.18-118,095.66-41,258.31

Finding the Fourth Proportional to 78,707.18, 118,095.66 and 41,258.31

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Solution

The fourth proportional to 78,707.18, 118,095.66 and 41,258.31 is: 61,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,707.18 : 118,095.66 = 41,258.31 : x
  2. Step 2: Convert to fraction form
    78,707.18/118,095.66 = 41,258.31/x
  3. Step 3: Cross multiply
    78,707.18x = 118,095.66 × 41,258.31
  4. Step 4: Simplify right side
    78,707.18x = 4,872,427,349.93
  5. Step 5: Solve for x
    x = 4,872,427,349.93/78,707.18
  6. Step 6: Final answer
    x = 61,905.75

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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.