Home / 70,869.20-97,801.12-39,038.72

Finding the Fourth Proportional to 70,869.20, 97,801.12 and 39,038.72

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Solution

The fourth proportional to 70,869.20, 97,801.12 and 39,038.72 is: 53,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,869.20 : 97,801.12 = 39,038.72 : x
  2. Step 2: Convert to fraction form
    70,869.20/97,801.12 = 39,038.72/x
  3. Step 3: Cross multiply
    70,869.20x = 97,801.12 × 39,038.72
  4. Step 4: Simplify right side
    70,869.20x = 3,818,030,539.37
  5. Step 5: Solve for x
    x = 3,818,030,539.37/70,869.20
  6. Step 6: Final answer
    x = 53,874.33

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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.