Home / 45,985.78-69,066.14-28,577.26

Finding the Fourth Proportional to 45,985.78, 69,066.14 and 28,577.26

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Solution

The fourth proportional to 45,985.78, 69,066.14 and 28,577.26 is: 42,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,985.78 : 69,066.14 = 28,577.26 : x
  2. Step 2: Convert to fraction form
    45,985.78/69,066.14 = 28,577.26/x
  3. Step 3: Cross multiply
    45,985.78x = 69,066.14 × 28,577.26
  4. Step 4: Simplify right side
    45,985.78x = 1,973,721,039.98
  5. Step 5: Solve for x
    x = 1,973,721,039.98/45,985.78
  6. Step 6: Final answer
    x = 42,920.25

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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.