Home / 77,837.07-107,423.25-47,642.52

Finding the Fourth Proportional to 77,837.07, 107,423.25 and 47,642.52

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Solution

The fourth proportional to 77,837.07, 107,423.25 and 47,642.52 is: 65,751.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,837.07 : 107,423.25 = 47,642.52 : x
  2. Step 2: Convert to fraction form
    77,837.07/107,423.25 = 47,642.52/x
  3. Step 3: Cross multiply
    77,837.07x = 107,423.25 × 47,642.52
  4. Step 4: Simplify right side
    77,837.07x = 5,117,914,336.59
  5. Step 5: Solve for x
    x = 5,117,914,336.59/77,837.07
  6. Step 6: Final answer
    x = 65,751.63

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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.