Home / 90,690.32-125,129.40-52,942.88

Finding the Fourth Proportional to 90,690.32, 125,129.40 and 52,942.88

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Solution

The fourth proportional to 90,690.32, 125,129.40 and 52,942.88 is: 73,047.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,690.32 : 125,129.40 = 52,942.88 : x
  2. Step 2: Convert to fraction form
    90,690.32/125,129.40 = 52,942.88/x
  3. Step 3: Cross multiply
    90,690.32x = 125,129.40 × 52,942.88
  4. Step 4: Simplify right side
    90,690.32x = 6,624,710,808.67
  5. Step 5: Solve for x
    x = 6,624,710,808.67/90,690.32
  6. Step 6: Final answer
    x = 73,047.61

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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.