Home / 64,971.20-89,675.10-38,114.84

Finding the Fourth Proportional to 64,971.20, 89,675.10 and 38,114.84

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Solution

The fourth proportional to 64,971.20, 89,675.10 and 38,114.84 is: 52,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,971.20 : 89,675.10 = 38,114.84 : x
  2. Step 2: Convert to fraction form
    64,971.20/89,675.10 = 38,114.84/x
  3. Step 3: Cross multiply
    64,971.20x = 89,675.10 × 38,114.84
  4. Step 4: Simplify right side
    64,971.20x = 3,417,952,088.48
  5. Step 5: Solve for x
    x = 3,417,952,088.48/64,971.20
  6. Step 6: Final answer
    x = 52,607.19

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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.