Home / 90,125.04-134,848.20-55,340.88

Finding the Fourth Proportional to 90,125.04, 134,848.20 and 55,340.88

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Solution

The fourth proportional to 90,125.04, 134,848.20 and 55,340.88 is: 82,802.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,125.04 : 134,848.20 = 55,340.88 : x
  2. Step 2: Convert to fraction form
    90,125.04/134,848.20 = 55,340.88/x
  3. Step 3: Cross multiply
    90,125.04x = 134,848.20 × 55,340.88
  4. Step 4: Simplify right side
    90,125.04x = 7,462,618,054.42
  5. Step 5: Solve for x
    x = 7,462,618,054.42/90,125.04
  6. Step 6: Final answer
    x = 82,802.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.