Home / 55,378.04-76,417.13-31,181.22

Finding the Fourth Proportional to 55,378.04, 76,417.13 and 31,181.22

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Solution

The fourth proportional to 55,378.04, 76,417.13 and 31,181.22 is: 43,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.04 : 76,417.13 = 31,181.22 : x
  2. Step 2: Convert to fraction form
    55,378.04/76,417.13 = 31,181.22/x
  3. Step 3: Cross multiply
    55,378.04x = 76,417.13 × 31,181.22
  4. Step 4: Simplify right side
    55,378.04x = 2,382,779,177.50
  5. Step 5: Solve for x
    x = 2,382,779,177.50/55,378.04
  6. Step 6: Final answer
    x = 43,027.51

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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.