Home / 76,964.57-106,213.34-42,972.51

Finding the Fourth Proportional to 76,964.57, 106,213.34 and 42,972.51

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Solution

The fourth proportional to 76,964.57, 106,213.34 and 42,972.51 is: 59,303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,964.57 : 106,213.34 = 42,972.51 : x
  2. Step 2: Convert to fraction form
    76,964.57/106,213.34 = 42,972.51/x
  3. Step 3: Cross multiply
    76,964.57x = 106,213.34 × 42,972.51
  4. Step 4: Simplify right side
    76,964.57x = 4,564,253,815.28
  5. Step 5: Solve for x
    x = 4,564,253,815.28/76,964.57
  6. Step 6: Final answer
    x = 59,303.31

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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.