Home / 47,056.60-64,929.78-31,135.24

Finding the Fourth Proportional to 47,056.60, 64,929.78 and 31,135.24

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Solution

The fourth proportional to 47,056.60, 64,929.78 and 31,135.24 is: 42,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,056.60 : 64,929.78 = 31,135.24 : x
  2. Step 2: Convert to fraction form
    47,056.60/64,929.78 = 31,135.24/x
  3. Step 3: Cross multiply
    47,056.60x = 64,929.78 × 31,135.24
  4. Step 4: Simplify right side
    47,056.60x = 2,021,604,283.45
  5. Step 5: Solve for x
    x = 2,021,604,283.45/47,056.60
  6. Step 6: Final answer
    x = 42,961.12

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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.