Home / 70,938.10-97,891.54-38,671.95

Finding the Fourth Proportional to 70,938.10, 97,891.54 and 38,671.95

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Solution

The fourth proportional to 70,938.10, 97,891.54 and 38,671.95 is: 53,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,938.10 : 97,891.54 = 38,671.95 : x
  2. Step 2: Convert to fraction form
    70,938.10/97,891.54 = 38,671.95/x
  3. Step 3: Cross multiply
    70,938.10x = 97,891.54 × 38,671.95
  4. Step 4: Simplify right side
    70,938.10x = 3,785,656,460.08
  5. Step 5: Solve for x
    x = 3,785,656,460.08/70,938.10
  6. Step 6: Final answer
    x = 53,365.63

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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.