Home / 53,649.05-74,018.54-30,985.04

Finding the Fourth Proportional to 53,649.05, 74,018.54 and 30,985.04

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Solution

The fourth proportional to 53,649.05, 74,018.54 and 30,985.04 is: 42,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,649.05 : 74,018.54 = 30,985.04 : x
  2. Step 2: Convert to fraction form
    53,649.05/74,018.54 = 30,985.04/x
  3. Step 3: Cross multiply
    53,649.05x = 74,018.54 × 30,985.04
  4. Step 4: Simplify right side
    53,649.05x = 2,293,467,685.15
  5. Step 5: Solve for x
    x = 2,293,467,685.15/53,649.05
  6. Step 6: Final answer
    x = 42,749.46

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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.