Home / 65,885.40-91,075.07-58,785.68

Finding the Fourth Proportional to 65,885.40, 91,075.07 and 58,785.68

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Solution

The fourth proportional to 65,885.40, 91,075.07 and 58,785.68 is: 81,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,885.40 : 91,075.07 = 58,785.68 : x
  2. Step 2: Convert to fraction form
    65,885.40/91,075.07 = 58,785.68/x
  3. Step 3: Cross multiply
    65,885.40x = 91,075.07 × 58,785.68
  4. Step 4: Simplify right side
    65,885.40x = 5,353,910,020.87
  5. Step 5: Solve for x
    x = 5,353,910,020.87/65,885.40
  6. Step 6: Final answer
    x = 81,260.95

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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.