Home / 76,154.36-105,089.58-42,160.46

Finding the Fourth Proportional to 76,154.36, 105,089.58 and 42,160.46

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Solution

The fourth proportional to 76,154.36, 105,089.58 and 42,160.46 is: 58,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,154.36 : 105,089.58 = 42,160.46 : x
  2. Step 2: Convert to fraction form
    76,154.36/105,089.58 = 42,160.46/x
  3. Step 3: Cross multiply
    76,154.36x = 105,089.58 × 42,160.46
  4. Step 4: Simplify right side
    76,154.36x = 4,430,624,508.56
  5. Step 5: Solve for x
    x = 4,430,624,508.56/76,154.36
  6. Step 6: Final answer
    x = 58,179.53

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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.