Home / 64,916.68-97,389.12-19,938.20

Finding the Fourth Proportional to 64,916.68, 97,389.12 and 19,938.20

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Solution

The fourth proportional to 64,916.68, 97,389.12 and 19,938.20 is: 29,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,916.68 : 97,389.12 = 19,938.20 : x
  2. Step 2: Convert to fraction form
    64,916.68/97,389.12 = 19,938.20/x
  3. Step 3: Cross multiply
    64,916.68x = 97,389.12 × 19,938.20
  4. Step 4: Simplify right side
    64,916.68x = 1,941,763,752.38
  5. Step 5: Solve for x
    x = 1,941,763,752.38/64,916.68
  6. Step 6: Final answer
    x = 29,911.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.