Home / 53,128.65-79,714.50-19,858.23

Finding the Fourth Proportional to 53,128.65, 79,714.50 and 19,858.23

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Solution

The fourth proportional to 53,128.65, 79,714.50 and 19,858.23 is: 29,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,128.65 : 79,714.50 = 19,858.23 : x
  2. Step 2: Convert to fraction form
    53,128.65/79,714.50 = 19,858.23/x
  3. Step 3: Cross multiply
    53,128.65x = 79,714.50 × 19,858.23
  4. Step 4: Simplify right side
    53,128.65x = 1,582,988,875.34
  5. Step 5: Solve for x
    x = 1,582,988,875.34/53,128.65
  6. Step 6: Final answer
    x = 29,795.39

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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.