Home / 76,624.20-105,739.84-42,632

Finding the Fourth Proportional to 76,624.20, 105,739.84 and 42,632

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Solution

The fourth proportional to 76,624.20, 105,739.84 and 42,632 is: 58,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,624.20 : 105,739.84 = 42,632 : x
  2. Step 2: Convert to fraction form
    76,624.20/105,739.84 = 42,632/x
  3. Step 3: Cross multiply
    76,624.20x = 105,739.84 × 42,632
  4. Step 4: Simplify right side
    76,624.20x = 4,507,900,858.88
  5. Step 5: Solve for x
    x = 4,507,900,858.88/76,624.20
  6. Step 6: Final answer
    x = 58,831.29

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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.