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Finding the Fourth Proportional to 53,330.50, 79,983.48 and 15,887.20

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Solution

The fourth proportional to 53,330.50, 79,983.48 and 15,887.20 is: 23,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,330.50 : 79,983.48 = 15,887.20 : x
  2. Step 2: Convert to fraction form
    53,330.50/79,983.48 = 15,887.20/x
  3. Step 3: Cross multiply
    53,330.50x = 79,983.48 × 15,887.20
  4. Step 4: Simplify right side
    53,330.50x = 1,270,713,543.46
  5. Step 5: Solve for x
    x = 1,270,713,543.46/53,330.50
  6. Step 6: Final answer
    x = 23,827.14

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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.