Home / 53,313.68-79,970.12-21,716.32

Finding the Fourth Proportional to 53,313.68, 79,970.12 and 21,716.32

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Solution

The fourth proportional to 53,313.68, 79,970.12 and 21,716.32 is: 32,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,313.68 : 79,970.12 = 21,716.32 : x
  2. Step 2: Convert to fraction form
    53,313.68/79,970.12 = 21,716.32/x
  3. Step 3: Cross multiply
    53,313.68x = 79,970.12 × 21,716.32
  4. Step 4: Simplify right side
    53,313.68x = 1,736,656,716.36
  5. Step 5: Solve for x
    x = 1,736,656,716.36/53,313.68
  6. Step 6: Final answer
    x = 32,574.32

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1.5x scale

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.