Home / 70,938.39-97,899.39-39,107.25

Finding the Fourth Proportional to 70,938.39, 97,899.39 and 39,107.25

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Solution

The fourth proportional to 70,938.39, 97,899.39 and 39,107.25 is: 53,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,938.39 : 97,899.39 = 39,107.25 : x
  2. Step 2: Convert to fraction form
    70,938.39/97,899.39 = 39,107.25/x
  3. Step 3: Cross multiply
    70,938.39x = 97,899.39 × 39,107.25
  4. Step 4: Simplify right side
    70,938.39x = 3,828,575,919.58
  5. Step 5: Solve for x
    x = 3,828,575,919.58/70,938.39
  6. Step 6: Final answer
    x = 53,970.44

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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.