Home / 81,538.42-112,512.14-45,239.28

Finding the Fourth Proportional to 81,538.42, 112,512.14 and 45,239.28

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Solution

The fourth proportional to 81,538.42, 112,512.14 and 45,239.28 is: 62,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,538.42 : 112,512.14 = 45,239.28 : x
  2. Step 2: Convert to fraction form
    81,538.42/112,512.14 = 45,239.28/x
  3. Step 3: Cross multiply
    81,538.42x = 112,512.14 × 45,239.28
  4. Step 4: Simplify right side
    81,538.42x = 5,089,968,204.86
  5. Step 5: Solve for x
    x = 5,089,968,204.86/81,538.42
  6. Step 6: Final answer
    x = 62,424.17

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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.