Home / 70,666.35-106,015.11-39,122.40

Finding the Fourth Proportional to 70,666.35, 106,015.11 and 39,122.40

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Solution

The fourth proportional to 70,666.35, 106,015.11 and 39,122.40 is: 58,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.35 : 106,015.11 = 39,122.40 : x
  2. Step 2: Convert to fraction form
    70,666.35/106,015.11 = 39,122.40/x
  3. Step 3: Cross multiply
    70,666.35x = 106,015.11 × 39,122.40
  4. Step 4: Simplify right side
    70,666.35x = 4,147,565,539.46
  5. Step 5: Solve for x
    x = 4,147,565,539.46/70,666.35
  6. Step 6: Final answer
    x = 58,692.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.