Home / 64,128.47-88,451.37-45,012.51

Finding the Fourth Proportional to 64,128.47, 88,451.37 and 45,012.51

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Solution

The fourth proportional to 64,128.47, 88,451.37 and 45,012.51 is: 62,085.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,128.47 : 88,451.37 = 45,012.51 : x
  2. Step 2: Convert to fraction form
    64,128.47/88,451.37 = 45,012.51/x
  3. Step 3: Cross multiply
    64,128.47x = 88,451.37 × 45,012.51
  4. Step 4: Simplify right side
    64,128.47x = 3,981,418,176.64
  5. Step 5: Solve for x
    x = 3,981,418,176.64/64,128.47
  6. Step 6: Final answer
    x = 62,085.03

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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.