Home / 93,781.51-129,418.71-51,342.79

Finding the Fourth Proportional to 93,781.51, 129,418.71 and 51,342.79

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Solution

The fourth proportional to 93,781.51, 129,418.71 and 51,342.79 is: 70,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,781.51 : 129,418.71 = 51,342.79 : x
  2. Step 2: Convert to fraction form
    93,781.51/129,418.71 = 51,342.79/x
  3. Step 3: Cross multiply
    93,781.51x = 129,418.71 × 51,342.79
  4. Step 4: Simplify right side
    93,781.51x = 6,644,717,649.60
  5. Step 5: Solve for x
    x = 6,644,717,649.60/93,781.51
  6. Step 6: Final answer
    x = 70,853.17

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1.5x scale

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.