Home / 75,490.40-104,182.56-45,276.88

Finding the Fourth Proportional to 75,490.40, 104,182.56 and 45,276.88

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Solution

The fourth proportional to 75,490.40, 104,182.56 and 45,276.88 is: 62,485.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,490.40 : 104,182.56 = 45,276.88 : x
  2. Step 2: Convert to fraction form
    75,490.40/104,182.56 = 45,276.88/x
  3. Step 3: Cross multiply
    75,490.40x = 104,182.56 × 45,276.88
  4. Step 4: Simplify right side
    75,490.40x = 4,717,061,267.21
  5. Step 5: Solve for x
    x = 4,717,061,267.21/75,490.40
  6. Step 6: Final answer
    x = 62,485.58

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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.