Home / 60,783.53-91,207.40-43,128.28

Finding the Fourth Proportional to 60,783.53, 91,207.40 and 43,128.28

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Solution

The fourth proportional to 60,783.53, 91,207.40 and 43,128.28 is: 64,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,783.53 : 91,207.40 = 43,128.28 : x
  2. Step 2: Convert to fraction form
    60,783.53/91,207.40 = 43,128.28/x
  3. Step 3: Cross multiply
    60,783.53x = 91,207.40 × 43,128.28
  4. Step 4: Simplify right side
    60,783.53x = 3,933,617,841.61
  5. Step 5: Solve for x
    x = 3,933,617,841.61/60,783.53
  6. Step 6: Final answer
    x = 64,715.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.