Home / 43,112.18-64,678.01-13,129.10

Finding the Fourth Proportional to 43,112.18, 64,678.01 and 13,129.10

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Solution

The fourth proportional to 43,112.18, 64,678.01 and 13,129.10 is: 19,696.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,112.18 : 64,678.01 = 13,129.10 : x
  2. Step 2: Convert to fraction form
    43,112.18/64,678.01 = 13,129.10/x
  3. Step 3: Cross multiply
    43,112.18x = 64,678.01 × 13,129.10
  4. Step 4: Simplify right side
    43,112.18x = 849,164,157.14
  5. Step 5: Solve for x
    x = 849,164,157.14/43,112.18
  6. Step 6: Final answer
    x = 19,696.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.