Home / 76,941.40-106,178.70-42,947.92

Finding the Fourth Proportional to 76,941.40, 106,178.70 and 42,947.92

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Solution

The fourth proportional to 76,941.40, 106,178.70 and 42,947.92 is: 59,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,941.40 : 106,178.70 = 42,947.92 : x
  2. Step 2: Convert to fraction form
    76,941.40/106,178.70 = 42,947.92/x
  3. Step 3: Cross multiply
    76,941.40x = 106,178.70 × 42,947.92
  4. Step 4: Simplify right side
    76,941.40x = 4,560,154,313.30
  5. Step 5: Solve for x
    x = 4,560,154,313.30/76,941.40
  6. Step 6: Final answer
    x = 59,267.89

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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.