Home / 74,803.56-103,235.07-42,548.28

Finding the Fourth Proportional to 74,803.56, 103,235.07 and 42,548.28

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Solution

The fourth proportional to 74,803.56, 103,235.07 and 42,548.28 is: 58,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,803.56 : 103,235.07 = 42,548.28 : x
  2. Step 2: Convert to fraction form
    74,803.56/103,235.07 = 42,548.28/x
  3. Step 3: Cross multiply
    74,803.56x = 103,235.07 × 42,548.28
  4. Step 4: Simplify right side
    74,803.56x = 4,392,474,664.18
  5. Step 5: Solve for x
    x = 4,392,474,664.18/74,803.56
  6. Step 6: Final answer
    x = 58,720.13

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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.