Home / 93,119.40-128,498.94-55,386.36

Finding the Fourth Proportional to 93,119.40, 128,498.94 and 55,386.36

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Solution

The fourth proportional to 93,119.40, 128,498.94 and 55,386.36 is: 76,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,119.40 : 128,498.94 = 55,386.36 : x
  2. Step 2: Convert to fraction form
    93,119.40/128,498.94 = 55,386.36/x
  3. Step 3: Cross multiply
    93,119.40x = 128,498.94 × 55,386.36
  4. Step 4: Simplify right side
    93,119.40x = 7,117,088,550.46
  5. Step 5: Solve for x
    x = 7,117,088,550.46/93,119.40
  6. Step 6: Final answer
    x = 76,429.71

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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.