Home / 55,490.08-76,577-31,617.24

Finding the Fourth Proportional to 55,490.08, 76,577 and 31,617.24

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Solution

The fourth proportional to 55,490.08, 76,577 and 31,617.24 is: 43,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,490.08 : 76,577 = 31,617.24 : x
  2. Step 2: Convert to fraction form
    55,490.08/76,577 = 31,617.24/x
  3. Step 3: Cross multiply
    55,490.08x = 76,577 × 31,617.24
  4. Step 4: Simplify right side
    55,490.08x = 2,421,153,387.48
  5. Step 5: Solve for x
    x = 2,421,153,387.48/55,490.08
  6. Step 6: Final answer
    x = 43,632.18

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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.