Home / 81,347.36-112,258.20-45,537.32

Finding the Fourth Proportional to 81,347.36, 112,258.20 and 45,537.32

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Solution

The fourth proportional to 81,347.36, 112,258.20 and 45,537.32 is: 62,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,347.36 : 112,258.20 = 45,537.32 : x
  2. Step 2: Convert to fraction form
    81,347.36/112,258.20 = 45,537.32/x
  3. Step 3: Cross multiply
    81,347.36x = 112,258.20 × 45,537.32
  4. Step 4: Simplify right side
    81,347.36x = 5,111,938,027.43
  5. Step 5: Solve for x
    x = 5,111,938,027.43/81,347.36
  6. Step 6: Final answer
    x = 62,840.86

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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.