Home / 70,916.70-97,865.64-39,085.68

Finding the Fourth Proportional to 70,916.70, 97,865.64 and 39,085.68

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Solution

The fourth proportional to 70,916.70, 97,865.64 and 39,085.68 is: 53,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,916.70 : 97,865.64 = 39,085.68 : x
  2. Step 2: Convert to fraction form
    70,916.70/97,865.64 = 39,085.68/x
  3. Step 3: Cross multiply
    70,916.70x = 97,865.64 × 39,085.68
  4. Step 4: Simplify right side
    70,916.70x = 3,825,145,088.04
  5. Step 5: Solve for x
    x = 3,825,145,088.04/70,916.70
  6. Step 6: Final answer
    x = 53,938.57

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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.