Home / 90,643.20-125,073.72-50,356.32

Finding the Fourth Proportional to 90,643.20, 125,073.72 and 50,356.32

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Solution

The fourth proportional to 90,643.20, 125,073.72 and 50,356.32 is: 69,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,643.20 : 125,073.72 = 50,356.32 : x
  2. Step 2: Convert to fraction form
    90,643.20/125,073.72 = 50,356.32/x
  3. Step 3: Cross multiply
    90,643.20x = 125,073.72 × 50,356.32
  4. Step 4: Simplify right side
    90,643.20x = 6,298,252,267.91
  5. Step 5: Solve for x
    x = 6,298,252,267.91/90,643.20
  6. Step 6: Final answer
    x = 69,484.00

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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.