Home / 71,349.06-107,039.99-21,430.10

Finding the Fourth Proportional to 71,349.06, 107,039.99 and 21,430.10

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Solution

The fourth proportional to 71,349.06, 107,039.99 and 21,430.10 is: 32,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,349.06 : 107,039.99 = 21,430.10 : x
  2. Step 2: Convert to fraction form
    71,349.06/107,039.99 = 21,430.10/x
  3. Step 3: Cross multiply
    71,349.06x = 107,039.99 × 21,430.10
  4. Step 4: Simplify right side
    71,349.06x = 2,293,877,689.70
  5. Step 5: Solve for x
    x = 2,293,877,689.70/71,349.06
  6. Step 6: Final answer
    x = 32,150.08

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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.