Home / 91,173.82-125,720.68-59,283.58

Finding the Fourth Proportional to 91,173.82, 125,720.68 and 59,283.58

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Solution

The fourth proportional to 91,173.82, 125,720.68 and 59,283.58 is: 81,746.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,173.82 : 125,720.68 = 59,283.58 : x
  2. Step 2: Convert to fraction form
    91,173.82/125,720.68 = 59,283.58/x
  3. Step 3: Cross multiply
    91,173.82x = 125,720.68 × 59,283.58
  4. Step 4: Simplify right side
    91,173.82x = 7,453,171,065.41
  5. Step 5: Solve for x
    x = 7,453,171,065.41/91,173.82
  6. Step 6: Final answer
    x = 81,746.84

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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.