Home / 78,237.16-117,355.26-25,646.26

Finding the Fourth Proportional to 78,237.16, 117,355.26 and 25,646.26

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Solution

The fourth proportional to 78,237.16, 117,355.26 and 25,646.26 is: 38,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,237.16 : 117,355.26 = 25,646.26 : x
  2. Step 2: Convert to fraction form
    78,237.16/117,355.26 = 25,646.26/x
  3. Step 3: Cross multiply
    78,237.16x = 117,355.26 × 25,646.26
  4. Step 4: Simplify right side
    78,237.16x = 3,009,723,510.33
  5. Step 5: Solve for x
    x = 3,009,723,510.33/78,237.16
  6. Step 6: Final answer
    x = 38,469.23

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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.