Home / 74,701.50-103,085.07-40,709.26

Finding the Fourth Proportional to 74,701.50, 103,085.07 and 40,709.26

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Solution

The fourth proportional to 74,701.50, 103,085.07 and 40,709.26 is: 56,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.50 : 103,085.07 = 40,709.26 : x
  2. Step 2: Convert to fraction form
    74,701.50/103,085.07 = 40,709.26/x
  3. Step 3: Cross multiply
    74,701.50x = 103,085.07 × 40,709.26
  4. Step 4: Simplify right side
    74,701.50x = 4,196,516,916.75
  5. Step 5: Solve for x
    x = 4,196,516,916.75/74,701.50
  6. Step 6: Final answer
    x = 56,177.14

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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.