Home / 85,075.08-127,631.08-25,909.22

Finding the Fourth Proportional to 85,075.08, 127,631.08 and 25,909.22

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Solution

The fourth proportional to 85,075.08, 127,631.08 and 25,909.22 is: 38,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,075.08 : 127,631.08 = 25,909.22 : x
  2. Step 2: Convert to fraction form
    85,075.08/127,631.08 = 25,909.22/x
  3. Step 3: Cross multiply
    85,075.08x = 127,631.08 × 25,909.22
  4. Step 4: Simplify right side
    85,075.08x = 3,306,821,730.56
  5. Step 5: Solve for x
    x = 3,306,821,730.56/85,075.08
  6. Step 6: Final answer
    x = 38,869.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.