Home / 81,547.86-112,536.96-45,249.96

Finding the Fourth Proportional to 81,547.86, 112,536.96 and 45,249.96

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Solution

The fourth proportional to 81,547.86, 112,536.96 and 45,249.96 is: 62,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,547.86 : 112,536.96 = 45,249.96 : x
  2. Step 2: Convert to fraction form
    81,547.86/112,536.96 = 45,249.96/x
  3. Step 3: Cross multiply
    81,547.86x = 112,536.96 × 45,249.96
  4. Step 4: Simplify right side
    81,547.86x = 5,092,292,938.52
  5. Step 5: Solve for x
    x = 5,092,292,938.52/81,547.86
  6. Step 6: Final answer
    x = 62,445.45

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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.