Home / 77,453.86-106,877.66-43,455.28

Finding the Fourth Proportional to 77,453.86, 106,877.66 and 43,455.28

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Solution

The fourth proportional to 77,453.86, 106,877.66 and 43,455.28 is: 59,963.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,453.86 : 106,877.66 = 43,455.28 : x
  2. Step 2: Convert to fraction form
    77,453.86/106,877.66 = 43,455.28/x
  3. Step 3: Cross multiply
    77,453.86x = 106,877.66 × 43,455.28
  4. Step 4: Simplify right side
    77,453.86x = 4,644,398,641.04
  5. Step 5: Solve for x
    x = 4,644,398,641.04/77,453.86
  6. Step 6: Final answer
    x = 59,963.42

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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.