Home / 76,090.19-105,041.07-50,638.91

Finding the Fourth Proportional to 76,090.19, 105,041.07 and 50,638.91

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Solution

The fourth proportional to 76,090.19, 105,041.07 and 50,638.91 is: 69,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,090.19 : 105,041.07 = 50,638.91 : x
  2. Step 2: Convert to fraction form
    76,090.19/105,041.07 = 50,638.91/x
  3. Step 3: Cross multiply
    76,090.19x = 105,041.07 × 50,638.91
  4. Step 4: Simplify right side
    76,090.19x = 5,319,164,764.83
  5. Step 5: Solve for x
    x = 5,319,164,764.83/76,090.19
  6. Step 6: Final answer
    x = 69,906.06

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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.