Home / 93,084.36-128,457.29-55,351.32

Finding the Fourth Proportional to 93,084.36, 128,457.29 and 55,351.32

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Solution

The fourth proportional to 93,084.36, 128,457.29 and 55,351.32 is: 76,385.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,084.36 : 128,457.29 = 55,351.32 : x
  2. Step 2: Convert to fraction form
    93,084.36/128,457.29 = 55,351.32/x
  3. Step 3: Cross multiply
    93,084.36x = 128,457.29 × 55,351.32
  4. Step 4: Simplify right side
    93,084.36x = 7,110,280,288.37
  5. Step 5: Solve for x
    x = 7,110,280,288.37/93,084.36
  6. Step 6: Final answer
    x = 76,385.34

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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.