Home / 64,495.18-89,021.92-39,001.60

Finding the Fourth Proportional to 64,495.18, 89,021.92 and 39,001.60

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Solution

The fourth proportional to 64,495.18, 89,021.92 and 39,001.60 is: 53,833.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,495.18 : 89,021.92 = 39,001.60 : x
  2. Step 2: Convert to fraction form
    64,495.18/89,021.92 = 39,001.60/x
  3. Step 3: Cross multiply
    64,495.18x = 89,021.92 × 39,001.60
  4. Step 4: Simplify right side
    64,495.18x = 3,471,997,315.07
  5. Step 5: Solve for x
    x = 3,471,997,315.07/64,495.18
  6. Step 6: Final answer
    x = 53,833.44

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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.