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Finding the Fourth Proportional to 70,266.78, 96,968.16 and 38,435.76

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Solution

The fourth proportional to 70,266.78, 96,968.16 and 38,435.76 is: 53,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,266.78 : 96,968.16 = 38,435.76 : x
  2. Step 2: Convert to fraction form
    70,266.78/96,968.16 = 38,435.76/x
  3. Step 3: Cross multiply
    70,266.78x = 96,968.16 × 38,435.76
  4. Step 4: Simplify right side
    70,266.78x = 3,727,044,925.40
  5. Step 5: Solve for x
    x = 3,727,044,925.40/70,266.78
  6. Step 6: Final answer
    x = 53,041.35

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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.