Home / 53,130.63-79,709.64-19,850.92

Finding the Fourth Proportional to 53,130.63, 79,709.64 and 19,850.92

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Solution

The fourth proportional to 53,130.63, 79,709.64 and 19,850.92 is: 29,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.63 : 79,709.64 = 19,850.92 : x
  2. Step 2: Convert to fraction form
    53,130.63/79,709.64 = 19,850.92/x
  3. Step 3: Cross multiply
    53,130.63x = 79,709.64 × 19,850.92
  4. Step 4: Simplify right side
    53,130.63x = 1,582,309,686.87
  5. Step 5: Solve for x
    x = 1,582,309,686.87/53,130.63
  6. Step 6: Final answer
    x = 29,781.50

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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.