Home / 76,336.74-105,351.03-42,353.46

Finding the Fourth Proportional to 76,336.74, 105,351.03 and 42,353.46

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Solution

The fourth proportional to 76,336.74, 105,351.03 and 42,353.46 is: 58,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,336.74 : 105,351.03 = 42,353.46 : x
  2. Step 2: Convert to fraction form
    76,336.74/105,351.03 = 42,353.46/x
  3. Step 3: Cross multiply
    76,336.74x = 105,351.03 × 42,353.46
  4. Step 4: Simplify right side
    76,336.74x = 4,461,980,635.06
  5. Step 5: Solve for x
    x = 4,461,980,635.06/76,336.74
  6. Step 6: Final answer
    x = 58,451.29

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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.