Home / 99,051.62-136,690.07-53,728.74

Finding the Fourth Proportional to 99,051.62, 136,690.07 and 53,728.74

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Solution

The fourth proportional to 99,051.62, 136,690.07 and 53,728.74 is: 74,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,051.62 : 136,690.07 = 53,728.74 : x
  2. Step 2: Convert to fraction form
    99,051.62/136,690.07 = 53,728.74/x
  3. Step 3: Cross multiply
    99,051.62x = 136,690.07 × 53,728.74
  4. Step 4: Simplify right side
    99,051.62x = 7,344,184,962.97
  5. Step 5: Solve for x
    x = 7,344,184,962.97/99,051.62
  6. Step 6: Final answer
    x = 74,145.03

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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.