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Finding the Fourth Proportional to 43,277.79, 64,916.69 and 10,445.79

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Solution

The fourth proportional to 43,277.79, 64,916.69 and 10,445.79 is: 15,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,277.79 : 64,916.69 = 10,445.79 : x
  2. Step 2: Convert to fraction form
    43,277.79/64,916.69 = 10,445.79/x
  3. Step 3: Cross multiply
    43,277.79x = 64,916.69 × 10,445.79
  4. Step 4: Simplify right side
    43,277.79x = 678,106,059.01
  5. Step 5: Solve for x
    x = 678,106,059.01/43,277.79
  6. Step 6: Final answer
    x = 15,668.69

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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.