Home / 90,804.41-125,314.14-75,671.75

Finding the Fourth Proportional to 90,804.41, 125,314.14 and 75,671.75

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Solution

The fourth proportional to 90,804.41, 125,314.14 and 75,671.75 is: 104,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804.41 : 125,314.14 = 75,671.75 : x
  2. Step 2: Convert to fraction form
    90,804.41/125,314.14 = 75,671.75/x
  3. Step 3: Cross multiply
    90,804.41x = 125,314.14 × 75,671.75
  4. Step 4: Simplify right side
    90,804.41x = 9,482,739,646.97
  5. Step 5: Solve for x
    x = 9,482,739,646.97/90,804.41
  6. Step 6: Final answer
    x = 104,430.39

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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.