Home / 74,439.42-102,731-42,607.60

Finding the Fourth Proportional to 74,439.42, 102,731 and 42,607.60

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Solution

The fourth proportional to 74,439.42, 102,731 and 42,607.60 is: 58,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,439.42 : 102,731 = 42,607.60 : x
  2. Step 2: Convert to fraction form
    74,439.42/102,731 = 42,607.60/x
  3. Step 3: Cross multiply
    74,439.42x = 102,731 × 42,607.60
  4. Step 4: Simplify right side
    74,439.42x = 4,377,121,355.60
  5. Step 5: Solve for x
    x = 4,377,121,355.60/74,439.42
  6. Step 6: Final answer
    x = 58,801.12

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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.