Home / 145,379.40-217,979.79-56,529.33

Finding the Fourth Proportional to 145,379.40, 217,979.79 and 56,529.33

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Solution

The fourth proportional to 145,379.40, 217,979.79 and 56,529.33 is: 84,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,379.40 : 217,979.79 = 56,529.33 : x
  2. Step 2: Convert to fraction form
    145,379.40/217,979.79 = 56,529.33/x
  3. Step 3: Cross multiply
    145,379.40x = 217,979.79 × 56,529.33
  4. Step 4: Simplify right side
    145,379.40x = 12,322,251,482.24
  5. Step 5: Solve for x
    x = 12,322,251,482.24/145,379.40
  6. Step 6: Final answer
    x = 84,759.27

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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.