Home / 74,188.89-102,520.38-56,250.63

Finding the Fourth Proportional to 74,188.89, 102,520.38 and 56,250.63

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Solution

The fourth proportional to 74,188.89, 102,520.38 and 56,250.63 is: 77,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.89 : 102,520.38 = 56,250.63 : x
  2. Step 2: Convert to fraction form
    74,188.89/102,520.38 = 56,250.63/x
  3. Step 3: Cross multiply
    74,188.89x = 102,520.38 × 56,250.63
  4. Step 4: Simplify right side
    74,188.89x = 5,766,835,962.84
  5. Step 5: Solve for x
    x = 5,766,835,962.84/74,188.89
  6. Step 6: Final answer
    x = 77,731.80

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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.