Home / 77,221.76-106,575.36-43,681.28

Finding the Fourth Proportional to 77,221.76, 106,575.36 and 43,681.28

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Solution

The fourth proportional to 77,221.76, 106,575.36 and 43,681.28 is: 60,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,221.76 : 106,575.36 = 43,681.28 : x
  2. Step 2: Convert to fraction form
    77,221.76/106,575.36 = 43,681.28/x
  3. Step 3: Cross multiply
    77,221.76x = 106,575.36 × 43,681.28
  4. Step 4: Simplify right side
    77,221.76x = 4,655,348,141.26
  5. Step 5: Solve for x
    x = 4,655,348,141.26/77,221.76
  6. Step 6: Final answer
    x = 60,285.44

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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.