Home / 66,301.18-91,488.14-39,075.50

Finding the Fourth Proportional to 66,301.18, 91,488.14 and 39,075.50

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Solution

The fourth proportional to 66,301.18, 91,488.14 and 39,075.50 is: 53,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.18 : 91,488.14 = 39,075.50 : x
  2. Step 2: Convert to fraction form
    66,301.18/91,488.14 = 39,075.50/x
  3. Step 3: Cross multiply
    66,301.18x = 91,488.14 × 39,075.50
  4. Step 4: Simplify right side
    66,301.18x = 3,574,944,589.73
  5. Step 5: Solve for x
    x = 3,574,944,589.73/66,301.18
  6. Step 6: Final answer
    x = 53,919.77

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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.