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Finding the Fourth Proportional to 64,298.80, 88,717.98 and 38,809.30

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Solution

The fourth proportional to 64,298.80, 88,717.98 and 38,809.30 is: 53,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,298.80 : 88,717.98 = 38,809.30 : x
  2. Step 2: Convert to fraction form
    64,298.80/88,717.98 = 38,809.30/x
  3. Step 3: Cross multiply
    64,298.80x = 88,717.98 × 38,809.30
  4. Step 4: Simplify right side
    64,298.80x = 3,443,082,701.21
  5. Step 5: Solve for x
    x = 3,443,082,701.21/64,298.80
  6. Step 6: Final answer
    x = 53,548.16

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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.