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Finding the Fourth Proportional to 70,368.40, 97,108.52 and 38,103.36

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Solution

The fourth proportional to 70,368.40, 97,108.52 and 38,103.36 is: 52,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,368.40 : 97,108.52 = 38,103.36 : x
  2. Step 2: Convert to fraction form
    70,368.40/97,108.52 = 38,103.36/x
  3. Step 3: Cross multiply
    70,368.40x = 97,108.52 × 38,103.36
  4. Step 4: Simplify right side
    70,368.40x = 3,700,160,896.63
  5. Step 5: Solve for x
    x = 3,700,160,896.63/70,368.40
  6. Step 6: Final answer
    x = 52,582.71

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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.