Home / 42,771.17-64,152.62-13,181.06

Finding the Fourth Proportional to 42,771.17, 64,152.62 and 13,181.06

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Solution

The fourth proportional to 42,771.17, 64,152.62 and 13,181.06 is: 19,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771.17 : 64,152.62 = 13,181.06 : x
  2. Step 2: Convert to fraction form
    42,771.17/64,152.62 = 13,181.06/x
  3. Step 3: Cross multiply
    42,771.17x = 64,152.62 × 13,181.06
  4. Step 4: Simplify right side
    42,771.17x = 845,599,533.38
  5. Step 5: Solve for x
    x = 845,599,533.38/42,771.17
  6. Step 6: Final answer
    x = 19,770.32

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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.