Home / 70,855.28-97,780.50-38,590.14

Finding the Fourth Proportional to 70,855.28, 97,780.50 and 38,590.14

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Solution

The fourth proportional to 70,855.28, 97,780.50 and 38,590.14 is: 53,254.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,855.28 : 97,780.50 = 38,590.14 : x
  2. Step 2: Convert to fraction form
    70,855.28/97,780.50 = 38,590.14/x
  3. Step 3: Cross multiply
    70,855.28x = 97,780.50 × 38,590.14
  4. Step 4: Simplify right side
    70,855.28x = 3,773,363,184.27
  5. Step 5: Solve for x
    x = 3,773,363,184.27/70,855.28
  6. Step 6: Final answer
    x = 53,254.51

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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.