Home / 70,840.22-97,759.40-39,009.20

Finding the Fourth Proportional to 70,840.22, 97,759.40 and 39,009.20

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Solution

The fourth proportional to 70,840.22, 97,759.40 and 39,009.20 is: 53,832.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,840.22 : 97,759.40 = 39,009.20 : x
  2. Step 2: Convert to fraction form
    70,840.22/97,759.40 = 39,009.20/x
  3. Step 3: Cross multiply
    70,840.22x = 97,759.40 × 39,009.20
  4. Step 4: Simplify right side
    70,840.22x = 3,813,515,986.48
  5. Step 5: Solve for x
    x = 3,813,515,986.48/70,840.22
  6. Step 6: Final answer
    x = 53,832.64

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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.