Home / 62,985.42-86,926-47,042.18

Finding the Fourth Proportional to 62,985.42, 86,926 and 47,042.18

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Solution

The fourth proportional to 62,985.42, 86,926 and 47,042.18 is: 64,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,985.42 : 86,926 = 47,042.18 : x
  2. Step 2: Convert to fraction form
    62,985.42/86,926 = 47,042.18/x
  3. Step 3: Cross multiply
    62,985.42x = 86,926 × 47,042.18
  4. Step 4: Simplify right side
    62,985.42x = 4,089,188,538.68
  5. Step 5: Solve for x
    x = 4,089,188,538.68/62,985.42
  6. Step 6: Final answer
    x = 64,922.78

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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.