Home / 53,088.72-79,646.86-19,809.04

Finding the Fourth Proportional to 53,088.72, 79,646.86 and 19,809.04

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Solution

The fourth proportional to 53,088.72, 79,646.86 and 19,809.04 is: 29,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,088.72 : 79,646.86 = 19,809.04 : x
  2. Step 2: Convert to fraction form
    53,088.72/79,646.86 = 19,809.04/x
  3. Step 3: Cross multiply
    53,088.72x = 79,646.86 × 19,809.04
  4. Step 4: Simplify right side
    53,088.72x = 1,577,727,516.37
  5. Step 5: Solve for x
    x = 1,577,727,516.37/53,088.72
  6. Step 6: Final answer
    x = 29,718.70

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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.