Home / 56,184.08-77,531.06-30,690.07

Finding the Fourth Proportional to 56,184.08, 77,531.06 and 30,690.07

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Solution

The fourth proportional to 56,184.08, 77,531.06 and 30,690.07 is: 42,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,184.08 : 77,531.06 = 30,690.07 : x
  2. Step 2: Convert to fraction form
    56,184.08/77,531.06 = 30,690.07/x
  3. Step 3: Cross multiply
    56,184.08x = 77,531.06 × 30,690.07
  4. Step 4: Simplify right side
    56,184.08x = 2,379,433,586.90
  5. Step 5: Solve for x
    x = 2,379,433,586.90/56,184.08
  6. Step 6: Final answer
    x = 42,350.68

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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.