Home / 76,334.70-105,343.58-42,342.08

Finding the Fourth Proportional to 76,334.70, 105,343.58 and 42,342.08

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Solution

The fourth proportional to 76,334.70, 105,343.58 and 42,342.08 is: 58,433.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,334.70 : 105,343.58 = 42,342.08 : x
  2. Step 2: Convert to fraction form
    76,334.70/105,343.58 = 42,342.08/x
  3. Step 3: Cross multiply
    76,334.70x = 105,343.58 × 42,342.08
  4. Step 4: Simplify right side
    76,334.70x = 4,460,466,640.73
  5. Step 5: Solve for x
    x = 4,460,466,640.73/76,334.70
  6. Step 6: Final answer
    x = 58,433.01

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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.