Home / 81,657.36-112,683.35-45,361.16

Finding the Fourth Proportional to 81,657.36, 112,683.35 and 45,361.16

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Solution

The fourth proportional to 81,657.36, 112,683.35 and 45,361.16 is: 62,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657.36 : 112,683.35 = 45,361.16 : x
  2. Step 2: Convert to fraction form
    81,657.36/112,683.35 = 45,361.16/x
  3. Step 3: Cross multiply
    81,657.36x = 112,683.35 × 45,361.16
  4. Step 4: Simplify right side
    81,657.36x = 5,111,447,468.69
  5. Step 5: Solve for x
    x = 5,111,447,468.69/81,657.36
  6. Step 6: Final answer
    x = 62,596.29

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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.