Home / 57,085.64-78,776.94-31,244.07

Finding the Fourth Proportional to 57,085.64, 78,776.94 and 31,244.07

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Solution

The fourth proportional to 57,085.64, 78,776.94 and 31,244.07 is: 43,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,085.64 : 78,776.94 = 31,244.07 : x
  2. Step 2: Convert to fraction form
    57,085.64/78,776.94 = 31,244.07/x
  3. Step 3: Cross multiply
    57,085.64x = 78,776.94 × 31,244.07
  4. Step 4: Simplify right side
    57,085.64x = 2,461,312,227.75
  5. Step 5: Solve for x
    x = 2,461,312,227.75/57,085.64
  6. Step 6: Final answer
    x = 43,116.13

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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.