Home / 93,665.28-129,218.85-61,407.63

Finding the Fourth Proportional to 93,665.28, 129,218.85 and 61,407.63

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Solution

The fourth proportional to 93,665.28, 129,218.85 and 61,407.63 is: 84,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,665.28 : 129,218.85 = 61,407.63 : x
  2. Step 2: Convert to fraction form
    93,665.28/129,218.85 = 61,407.63/x
  3. Step 3: Cross multiply
    93,665.28x = 129,218.85 × 61,407.63
  4. Step 4: Simplify right side
    93,665.28x = 7,935,023,329.83
  5. Step 5: Solve for x
    x = 7,935,023,329.83/93,665.28
  6. Step 6: Final answer
    x = 84,716.81

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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.