Home / 66,345.42-91,575.99-53,009.58

Finding the Fourth Proportional to 66,345.42, 91,575.99 and 53,009.58

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Solution

The fourth proportional to 66,345.42, 91,575.99 and 53,009.58 is: 73,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,345.42 : 91,575.99 = 53,009.58 : x
  2. Step 2: Convert to fraction form
    66,345.42/91,575.99 = 53,009.58/x
  3. Step 3: Cross multiply
    66,345.42x = 91,575.99 × 53,009.58
  4. Step 4: Simplify right side
    66,345.42x = 4,854,404,767.98
  5. Step 5: Solve for x
    x = 4,854,404,767.98/66,345.42
  6. Step 6: Final answer
    x = 73,168.65

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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.