Home / 70,840.13-97,759.53-39,009.09

Finding the Fourth Proportional to 70,840.13, 97,759.53 and 39,009.09

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Solution

The fourth proportional to 70,840.13, 97,759.53 and 39,009.09 is: 53,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,840.13 : 97,759.53 = 39,009.09 : x
  2. Step 2: Convert to fraction form
    70,840.13/97,759.53 = 39,009.09/x
  3. Step 3: Cross multiply
    70,840.13x = 97,759.53 × 39,009.09
  4. Step 4: Simplify right side
    70,840.13x = 3,813,510,109.08
  5. Step 5: Solve for x
    x = 3,813,510,109.08/70,840.13
  6. Step 6: Final answer
    x = 53,832.62

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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.