Home / 53,313.69-79,970.10-21,716.31

Finding the Fourth Proportional to 53,313.69, 79,970.10 and 21,716.31

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Solution

The fourth proportional to 53,313.69, 79,970.10 and 21,716.31 is: 32,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,313.69 : 79,970.10 = 21,716.31 : x
  2. Step 2: Convert to fraction form
    53,313.69/79,970.10 = 21,716.31/x
  3. Step 3: Cross multiply
    53,313.69x = 79,970.10 × 21,716.31
  4. Step 4: Simplify right side
    53,313.69x = 1,736,655,482.33
  5. Step 5: Solve for x
    x = 1,736,655,482.33/53,313.69
  6. Step 6: Final answer
    x = 32,574.29

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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.