Home / 81,258.29-112,127.37-45,447.58

Finding the Fourth Proportional to 81,258.29, 112,127.37 and 45,447.58

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Solution

The fourth proportional to 81,258.29, 112,127.37 and 45,447.58 is: 62,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,258.29 : 112,127.37 = 45,447.58 : x
  2. Step 2: Convert to fraction form
    81,258.29/112,127.37 = 45,447.58/x
  3. Step 3: Cross multiply
    81,258.29x = 112,127.37 × 45,447.58
  4. Step 4: Simplify right side
    81,258.29x = 5,095,917,057.63
  5. Step 5: Solve for x
    x = 5,095,917,057.63/81,258.29
  6. Step 6: Final answer
    x = 62,712.58

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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.