Home / 93,555.08-129,107.70-51,115.40

Finding the Fourth Proportional to 93,555.08, 129,107.70 and 51,115.40

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Solution

The fourth proportional to 93,555.08, 129,107.70 and 51,115.40 is: 70,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,555.08 : 129,107.70 = 51,115.40 : x
  2. Step 2: Convert to fraction form
    93,555.08/129,107.70 = 51,115.40/x
  3. Step 3: Cross multiply
    93,555.08x = 129,107.70 × 51,115.40
  4. Step 4: Simplify right side
    93,555.08x = 6,599,391,728.58
  5. Step 5: Solve for x
    x = 6,599,391,728.58/93,555.08
  6. Step 6: Final answer
    x = 70,540.18

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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.