Home / 70,272.39-96,981.16-40,058.43

Finding the Fourth Proportional to 70,272.39, 96,981.16 and 40,058.43

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Solution

The fourth proportional to 70,272.39, 96,981.16 and 40,058.43 is: 55,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.39 : 96,981.16 = 40,058.43 : x
  2. Step 2: Convert to fraction form
    70,272.39/96,981.16 = 40,058.43/x
  3. Step 3: Cross multiply
    70,272.39x = 96,981.16 × 40,058.43
  4. Step 4: Simplify right side
    70,272.39x = 3,884,913,009.18
  5. Step 5: Solve for x
    x = 3,884,913,009.18/70,272.39
  6. Step 6: Final answer
    x = 55,283.63

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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.