Home / 93,631.14-129,209.78-53,347.21

Finding the Fourth Proportional to 93,631.14, 129,209.78 and 53,347.21

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Solution

The fourth proportional to 93,631.14, 129,209.78 and 53,347.21 is: 73,618.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,631.14 : 129,209.78 = 53,347.21 : x
  2. Step 2: Convert to fraction form
    93,631.14/129,209.78 = 53,347.21/x
  3. Step 3: Cross multiply
    93,631.14x = 129,209.78 × 53,347.21
  4. Step 4: Simplify right side
    93,631.14x = 6,892,981,078.06
  5. Step 5: Solve for x
    x = 6,892,981,078.06/93,631.14
  6. Step 6: Final answer
    x = 73,618.47

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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.