Home / 90,049.04-135,068.67-45,674.64

Finding the Fourth Proportional to 90,049.04, 135,068.67 and 45,674.64

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Solution

The fourth proportional to 90,049.04, 135,068.67 and 45,674.64 is: 68,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,049.04 : 135,068.67 = 45,674.64 : x
  2. Step 2: Convert to fraction form
    90,049.04/135,068.67 = 45,674.64/x
  3. Step 3: Cross multiply
    90,049.04x = 135,068.67 × 45,674.64
  4. Step 4: Simplify right side
    90,049.04x = 6,169,212,877.53
  5. Step 5: Solve for x
    x = 6,169,212,877.53/90,049.04
  6. Step 6: Final answer
    x = 68,509.48

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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.