Home / 42,670.51-63,866.34-38,578.12

Finding the Fourth Proportional to 42,670.51, 63,866.34 and 38,578.12

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Solution

The fourth proportional to 42,670.51, 63,866.34 and 38,578.12 is: 57,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,670.51 : 63,866.34 = 38,578.12 : x
  2. Step 2: Convert to fraction form
    42,670.51/63,866.34 = 38,578.12/x
  3. Step 3: Cross multiply
    42,670.51x = 63,866.34 × 38,578.12
  4. Step 4: Simplify right side
    42,670.51x = 2,463,843,168.81
  5. Step 5: Solve for x
    x = 2,463,843,168.81/42,670.51
  6. Step 6: Final answer
    x = 57,741.13

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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.