Home / 90,878.63-125,424.23-52,131.53

Finding the Fourth Proportional to 90,878.63, 125,424.23 and 52,131.53

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Solution

The fourth proportional to 90,878.63, 125,424.23 and 52,131.53 is: 71,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,878.63 : 125,424.23 = 52,131.53 : x
  2. Step 2: Convert to fraction form
    90,878.63/125,424.23 = 52,131.53/x
  3. Step 3: Cross multiply
    90,878.63x = 125,424.23 × 52,131.53
  4. Step 4: Simplify right side
    90,878.63x = 6,538,557,061.87
  5. Step 5: Solve for x
    x = 6,538,557,061.87/90,878.63
  6. Step 6: Final answer
    x = 71,948.24

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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.