Home / 77,877.02-107,511.66-62,395.16

Finding the Fourth Proportional to 77,877.02, 107,511.66 and 62,395.16

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Solution

The fourth proportional to 77,877.02, 107,511.66 and 62,395.16 is: 86,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,877.02 : 107,511.66 = 62,395.16 : x
  2. Step 2: Convert to fraction form
    77,877.02/107,511.66 = 62,395.16/x
  3. Step 3: Cross multiply
    77,877.02x = 107,511.66 × 62,395.16
  4. Step 4: Simplify right side
    77,877.02x = 6,708,207,227.57
  5. Step 5: Solve for x
    x = 6,708,207,227.57/77,877.02
  6. Step 6: Final answer
    x = 86,138.47

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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.