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Finding the Fourth Proportional to 70,384.88, 97,133.64 and 38,555.12

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Solution

The fourth proportional to 70,384.88, 97,133.64 and 38,555.12 is: 53,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,384.88 : 97,133.64 = 38,555.12 : x
  2. Step 2: Convert to fraction form
    70,384.88/97,133.64 = 38,555.12/x
  3. Step 3: Cross multiply
    70,384.88x = 97,133.64 × 38,555.12
  4. Step 4: Simplify right side
    70,384.88x = 3,744,999,146.24
  5. Step 5: Solve for x
    x = 3,744,999,146.24/70,384.88
  6. Step 6: Final answer
    x = 53,207.44

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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.