Home / 90,252.80-124,509.12-54,444.32

Finding the Fourth Proportional to 90,252.80, 124,509.12 and 54,444.32

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Solution

The fourth proportional to 90,252.80, 124,509.12 and 54,444.32 is: 75,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,252.80 : 124,509.12 = 54,444.32 : x
  2. Step 2: Convert to fraction form
    90,252.80/124,509.12 = 54,444.32/x
  3. Step 3: Cross multiply
    90,252.80x = 124,509.12 × 54,444.32
  4. Step 4: Simplify right side
    90,252.80x = 6,778,814,372.20
  5. Step 5: Solve for x
    x = 6,778,814,372.20/90,252.80
  6. Step 6: Final answer
    x = 75,109.19

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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.