Home / 77,465.28-106,905.60-45,635.52

Finding the Fourth Proportional to 77,465.28, 106,905.60 and 45,635.52

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Solution

The fourth proportional to 77,465.28, 106,905.60 and 45,635.52 is: 62,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,465.28 : 106,905.60 = 45,635.52 : x
  2. Step 2: Convert to fraction form
    77,465.28/106,905.60 = 45,635.52/x
  3. Step 3: Cross multiply
    77,465.28x = 106,905.60 × 45,635.52
  4. Step 4: Simplify right side
    77,465.28x = 4,878,692,646.91
  5. Step 5: Solve for x
    x = 4,878,692,646.91/77,465.28
  6. Step 6: Final answer
    x = 62,979.09

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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.