Home / 64,821.12-89,459.01-37,972.86

Finding the Fourth Proportional to 64,821.12, 89,459.01 and 37,972.86

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Solution

The fourth proportional to 64,821.12, 89,459.01 and 37,972.86 is: 52,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,821.12 : 89,459.01 = 37,972.86 : x
  2. Step 2: Convert to fraction form
    64,821.12/89,459.01 = 37,972.86/x
  3. Step 3: Cross multiply
    64,821.12x = 89,459.01 × 37,972.86
  4. Step 4: Simplify right side
    64,821.12x = 3,397,014,462.47
  5. Step 5: Solve for x
    x = 3,397,014,462.47/64,821.12
  6. Step 6: Final answer
    x = 52,405.98

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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.