Home / 76,110.37-105,028.60-42,118.25

Finding the Fourth Proportional to 76,110.37, 105,028.60 and 42,118.25

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Solution

The fourth proportional to 76,110.37, 105,028.60 and 42,118.25 is: 58,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110.37 : 105,028.60 = 42,118.25 : x
  2. Step 2: Convert to fraction form
    76,110.37/105,028.60 = 42,118.25/x
  3. Step 3: Cross multiply
    76,110.37x = 105,028.60 × 42,118.25
  4. Step 4: Simplify right side
    76,110.37x = 4,423,620,831.95
  5. Step 5: Solve for x
    x = 4,423,620,831.95/76,110.37
  6. Step 6: Final answer
    x = 58,121.13

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1.5x scale

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.