Home / 93,789.16-129,429.42-51,351.64

Finding the Fourth Proportional to 93,789.16, 129,429.42 and 51,351.64

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Solution

The fourth proportional to 93,789.16, 129,429.42 and 51,351.64 is: 70,865.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,789.16 : 129,429.42 = 51,351.64 : x
  2. Step 2: Convert to fraction form
    93,789.16/129,429.42 = 51,351.64/x
  3. Step 3: Cross multiply
    93,789.16x = 129,429.42 × 51,351.64
  4. Step 4: Simplify right side
    93,789.16x = 6,646,412,981.25
  5. Step 5: Solve for x
    x = 6,646,412,981.25/93,789.16
  6. Step 6: Final answer
    x = 70,865.47

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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.