Home / 70,920.01-97,869.31-39,088.90

Finding the Fourth Proportional to 70,920.01, 97,869.31 and 39,088.90

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Solution

The fourth proportional to 70,920.01, 97,869.31 and 39,088.90 is: 53,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,920.01 : 97,869.31 = 39,088.90 : x
  2. Step 2: Convert to fraction form
    70,920.01/97,869.31 = 39,088.90/x
  3. Step 3: Cross multiply
    70,920.01x = 97,869.31 × 39,088.90
  4. Step 4: Simplify right side
    70,920.01x = 3,825,603,182.31
  5. Step 5: Solve for x
    x = 3,825,603,182.31/70,920.01
  6. Step 6: Final answer
    x = 53,942.51

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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.