Home / 93,417.45-128,871.67-55,151.36

Finding the Fourth Proportional to 93,417.45, 128,871.67 and 55,151.36

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Solution

The fourth proportional to 93,417.45, 128,871.67 and 55,151.36 is: 76,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,417.45 : 128,871.67 = 55,151.36 : x
  2. Step 2: Convert to fraction form
    93,417.45/128,871.67 = 55,151.36/x
  3. Step 3: Cross multiply
    93,417.45x = 128,871.67 × 55,151.36
  4. Step 4: Simplify right side
    93,417.45x = 7,107,447,865.97
  5. Step 5: Solve for x
    x = 7,107,447,865.97/93,417.45
  6. Step 6: Final answer
    x = 76,082.66

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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.