Home / 42,728.98-58,915.97-29,125.07

Finding the Fourth Proportional to 42,728.98, 58,915.97 and 29,125.07

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Solution

The fourth proportional to 42,728.98, 58,915.97 and 29,125.07 is: 40,158.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,728.98 : 58,915.97 = 29,125.07 : x
  2. Step 2: Convert to fraction form
    42,728.98/58,915.97 = 29,125.07/x
  3. Step 3: Cross multiply
    42,728.98x = 58,915.97 × 29,125.07
  4. Step 4: Simplify right side
    42,728.98x = 1,715,931,750.37
  5. Step 5: Solve for x
    x = 1,715,931,750.37/42,728.98
  6. Step 6: Final answer
    x = 40,158.50

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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.