Home / 53,409.16-80,089.07-19,666.70

Finding the Fourth Proportional to 53,409.16, 80,089.07 and 19,666.70

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Solution

The fourth proportional to 53,409.16, 80,089.07 and 19,666.70 is: 29,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,409.16 : 80,089.07 = 19,666.70 : x
  2. Step 2: Convert to fraction form
    53,409.16/80,089.07 = 19,666.70/x
  3. Step 3: Cross multiply
    53,409.16x = 80,089.07 × 19,666.70
  4. Step 4: Simplify right side
    53,409.16x = 1,575,087,962.36
  5. Step 5: Solve for x
    x = 1,575,087,962.36/53,409.16
  6. Step 6: Final answer
    x = 29,490.97

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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.