Home / 48,678.60-72,665.78-42,773.70

Finding the Fourth Proportional to 48,678.60, 72,665.78 and 42,773.70

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Solution

The fourth proportional to 48,678.60, 72,665.78 and 42,773.70 is: 63,851.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.60 : 72,665.78 = 42,773.70 : x
  2. Step 2: Convert to fraction form
    48,678.60/72,665.78 = 42,773.70/x
  3. Step 3: Cross multiply
    48,678.60x = 72,665.78 × 42,773.70
  4. Step 4: Simplify right side
    48,678.60x = 3,108,184,060.12
  5. Step 5: Solve for x
    x = 3,108,184,060.12/48,678.60
  6. Step 6: Final answer
    x = 63,851.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.