Home / 64,999.24-89,699.55-38,142.20

Finding the Fourth Proportional to 64,999.24, 89,699.55 and 38,142.20

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Solution

The fourth proportional to 64,999.24, 89,699.55 and 38,142.20 is: 52,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,999.24 : 89,699.55 = 38,142.20 : x
  2. Step 2: Convert to fraction form
    64,999.24/89,699.55 = 38,142.20/x
  3. Step 3: Cross multiply
    64,999.24x = 89,699.55 × 38,142.20
  4. Step 4: Simplify right side
    64,999.24x = 3,421,338,176.01
  5. Step 5: Solve for x
    x = 3,421,338,176.01/64,999.24
  6. Step 6: Final answer
    x = 52,636.59

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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.