Home / 93,225.42-128,655-50,786.28

Finding the Fourth Proportional to 93,225.42, 128,655 and 50,786.28

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Solution

The fourth proportional to 93,225.42, 128,655 and 50,786.28 is: 70,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,225.42 : 128,655 = 50,786.28 : x
  2. Step 2: Convert to fraction form
    93,225.42/128,655 = 50,786.28/x
  3. Step 3: Cross multiply
    93,225.42x = 128,655 × 50,786.28
  4. Step 4: Simplify right side
    93,225.42x = 6,533,908,853.40
  5. Step 5: Solve for x
    x = 6,533,908,853.40/93,225.42
  6. Step 6: Final answer
    x = 70,087.20

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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.