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Finding the Fourth Proportional to 70,714.63, 97,588.70 and 38,885.95

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Solution

The fourth proportional to 70,714.63, 97,588.70 and 38,885.95 is: 53,663.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,714.63 : 97,588.70 = 38,885.95 : x
  2. Step 2: Convert to fraction form
    70,714.63/97,588.70 = 38,885.95/x
  3. Step 3: Cross multiply
    70,714.63x = 97,588.70 × 38,885.95
  4. Step 4: Simplify right side
    70,714.63x = 3,794,829,308.77
  5. Step 5: Solve for x
    x = 3,794,829,308.77/70,714.63
  6. Step 6: Final answer
    x = 53,663.99

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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.