Home / 306,556.13-459,876.57-81,923.89

Finding the Fourth Proportional to 306,556.13, 459,876.57 and 81,923.89

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Solution

The fourth proportional to 306,556.13, 459,876.57 and 81,923.89 is: 122,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,556.13 : 459,876.57 = 81,923.89 : x
  2. Step 2: Convert to fraction form
    306,556.13/459,876.57 = 81,923.89/x
  3. Step 3: Cross multiply
    306,556.13x = 459,876.57 × 81,923.89
  4. Step 4: Simplify right side
    306,556.13x = 37,674,877,534.26
  5. Step 5: Solve for x
    x = 37,674,877,534.26/306,556.13
  6. Step 6: Final answer
    x = 122,897.16

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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.