Home / 55,417.08-76,471.02-31,220.04

Finding the Fourth Proportional to 55,417.08, 76,471.02 and 31,220.04

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Solution

The fourth proportional to 55,417.08, 76,471.02 and 31,220.04 is: 43,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,417.08 : 76,471.02 = 31,220.04 : x
  2. Step 2: Convert to fraction form
    55,417.08/76,471.02 = 31,220.04/x
  3. Step 3: Cross multiply
    55,417.08x = 76,471.02 × 31,220.04
  4. Step 4: Simplify right side
    55,417.08x = 2,387,428,303.24
  5. Step 5: Solve for x
    x = 2,387,428,303.24/55,417.08
  6. Step 6: Final answer
    x = 43,081.09

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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.