Home / 65,931.06-91,105.56-47,994.93

Finding the Fourth Proportional to 65,931.06, 91,105.56 and 47,994.93

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Solution

The fourth proportional to 65,931.06, 91,105.56 and 47,994.93 is: 66,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,931.06 : 91,105.56 = 47,994.93 : x
  2. Step 2: Convert to fraction form
    65,931.06/91,105.56 = 47,994.93/x
  3. Step 3: Cross multiply
    65,931.06x = 91,105.56 × 47,994.93
  4. Step 4: Simplify right side
    65,931.06x = 4,372,604,974.81
  5. Step 5: Solve for x
    x = 4,372,604,974.81/65,931.06
  6. Step 6: Final answer
    x = 66,320.86

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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.