Home / 90,669.94-136,030.44-31,511.59

Finding the Fourth Proportional to 90,669.94, 136,030.44 and 31,511.59

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Solution

The fourth proportional to 90,669.94, 136,030.44 and 31,511.59 is: 47,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,669.94 : 136,030.44 = 31,511.59 : x
  2. Step 2: Convert to fraction form
    90,669.94/136,030.44 = 31,511.59/x
  3. Step 3: Cross multiply
    90,669.94x = 136,030.44 × 31,511.59
  4. Step 4: Simplify right side
    90,669.94x = 4,286,535,452.80
  5. Step 5: Solve for x
    x = 4,286,535,452.80/90,669.94
  6. Step 6: Final answer
    x = 47,276.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.