Home / 78,365.84-117,518.67-38,360.14

Finding the Fourth Proportional to 78,365.84, 117,518.67 and 38,360.14

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Solution

The fourth proportional to 78,365.84, 117,518.67 and 38,360.14 is: 57,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,365.84 : 117,518.67 = 38,360.14 : x
  2. Step 2: Convert to fraction form
    78,365.84/117,518.67 = 38,360.14/x
  3. Step 3: Cross multiply
    78,365.84x = 117,518.67 × 38,360.14
  4. Step 4: Simplify right side
    78,365.84x = 4,508,032,340.02
  5. Step 5: Solve for x
    x = 4,508,032,340.02/78,365.84
  6. Step 6: Final answer
    x = 57,525.48

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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.