Home / 93,210.45-128,630.36-50,769

Finding the Fourth Proportional to 93,210.45, 128,630.36 and 50,769

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Solution

The fourth proportional to 93,210.45, 128,630.36 and 50,769 is: 70,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,210.45 : 128,630.36 = 50,769 : x
  2. Step 2: Convert to fraction form
    93,210.45/128,630.36 = 50,769/x
  3. Step 3: Cross multiply
    93,210.45x = 128,630.36 × 50,769
  4. Step 4: Simplify right side
    93,210.45x = 6,530,434,493.00
  5. Step 5: Solve for x
    x = 6,530,434,493.00/93,210.45
  6. Step 6: Final answer
    x = 70,061.18

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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.