Home / 74,102.96-102,271.74-42,278.06

Finding the Fourth Proportional to 74,102.96, 102,271.74 and 42,278.06

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Solution

The fourth proportional to 74,102.96, 102,271.74 and 42,278.06 is: 58,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,102.96 : 102,271.74 = 42,278.06 : x
  2. Step 2: Convert to fraction form
    74,102.96/102,271.74 = 42,278.06/x
  3. Step 3: Cross multiply
    74,102.96x = 102,271.74 × 42,278.06
  4. Step 4: Simplify right side
    74,102.96x = 4,323,850,760.02
  5. Step 5: Solve for x
    x = 4,323,850,760.02/74,102.96
  6. Step 6: Final answer
    x = 58,349.23

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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.