Home / 85,075.16-127,630.96-25,915.59

Finding the Fourth Proportional to 85,075.16, 127,630.96 and 25,915.59

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Solution

The fourth proportional to 85,075.16, 127,630.96 and 25,915.59 is: 38,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,075.16 : 127,630.96 = 25,915.59 : x
  2. Step 2: Convert to fraction form
    85,075.16/127,630.96 = 25,915.59/x
  3. Step 3: Cross multiply
    85,075.16x = 127,630.96 × 25,915.59
  4. Step 4: Simplify right side
    85,075.16x = 3,307,631,565.88
  5. Step 5: Solve for x
    x = 3,307,631,565.88/85,075.16
  6. Step 6: Final answer
    x = 38,878.94

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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.