Home / 56,230.18-77,655.76-48,640.07

Finding the Fourth Proportional to 56,230.18, 77,655.76 and 48,640.07

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Solution

The fourth proportional to 56,230.18, 77,655.76 and 48,640.07 is: 67,173.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,230.18 : 77,655.76 = 48,640.07 : x
  2. Step 2: Convert to fraction form
    56,230.18/77,655.76 = 48,640.07/x
  3. Step 3: Cross multiply
    56,230.18x = 77,655.76 × 48,640.07
  4. Step 4: Simplify right side
    56,230.18x = 3,777,181,674.84
  5. Step 5: Solve for x
    x = 3,777,181,674.84/56,230.18
  6. Step 6: Final answer
    x = 67,173.57

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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.