Home / 79,124.07-109,199.99-45,140.93

Finding the Fourth Proportional to 79,124.07, 109,199.99 and 45,140.93

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Solution

The fourth proportional to 79,124.07, 109,199.99 and 45,140.93 is: 62,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,124.07 : 109,199.99 = 45,140.93 : x
  2. Step 2: Convert to fraction form
    79,124.07/109,199.99 = 45,140.93/x
  3. Step 3: Cross multiply
    79,124.07x = 109,199.99 × 45,140.93
  4. Step 4: Simplify right side
    79,124.07x = 4,929,389,224.23
  5. Step 5: Solve for x
    x = 4,929,389,224.23/79,124.07
  6. Step 6: Final answer
    x = 62,299.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.