Home / 90,454.75-124,683.37-71,303.31

Finding the Fourth Proportional to 90,454.75, 124,683.37 and 71,303.31

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Solution

The fourth proportional to 90,454.75, 124,683.37 and 71,303.31 is: 98,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,454.75 : 124,683.37 = 71,303.31 : x
  2. Step 2: Convert to fraction form
    90,454.75/124,683.37 = 71,303.31/x
  3. Step 3: Cross multiply
    90,454.75x = 124,683.37 × 71,303.31
  4. Step 4: Simplify right side
    90,454.75x = 8,890,336,804.70
  5. Step 5: Solve for x
    x = 8,890,336,804.70/90,454.75
  6. Step 6: Final answer
    x = 98,284.91

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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.