Home / 65,860.15-90,862.55-41,981.35

Finding the Fourth Proportional to 65,860.15, 90,862.55 and 41,981.35

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Solution

The fourth proportional to 65,860.15, 90,862.55 and 41,981.35 is: 57,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,860.15 : 90,862.55 = 41,981.35 : x
  2. Step 2: Convert to fraction form
    65,860.15/90,862.55 = 41,981.35/x
  3. Step 3: Cross multiply
    65,860.15x = 90,862.55 × 41,981.35
  4. Step 4: Simplify right side
    65,860.15x = 3,814,532,303.54
  5. Step 5: Solve for x
    x = 3,814,532,303.54/65,860.15
  6. Step 6: Final answer
    x = 57,918.67

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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.