Home / 74,430.72-102,713.40-42,598.80

Finding the Fourth Proportional to 74,430.72, 102,713.40 and 42,598.80

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Solution

The fourth proportional to 74,430.72, 102,713.40 and 42,598.80 is: 58,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.72 : 102,713.40 = 42,598.80 : x
  2. Step 2: Convert to fraction form
    74,430.72/102,713.40 = 42,598.80/x
  3. Step 3: Cross multiply
    74,430.72x = 102,713.40 × 42,598.80
  4. Step 4: Simplify right side
    74,430.72x = 4,375,467,583.92
  5. Step 5: Solve for x
    x = 4,375,467,583.92/74,430.72
  6. Step 6: Final answer
    x = 58,785.78

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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.