Home / 93,420.44-128,875.80-55,154.36

Finding the Fourth Proportional to 93,420.44, 128,875.80 and 55,154.36

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Solution

The fourth proportional to 93,420.44, 128,875.80 and 55,154.36 is: 76,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,420.44 : 128,875.80 = 55,154.36 : x
  2. Step 2: Convert to fraction form
    93,420.44/128,875.80 = 55,154.36/x
  3. Step 3: Cross multiply
    93,420.44x = 128,875.80 × 55,154.36
  4. Step 4: Simplify right side
    93,420.44x = 7,108,062,268.49
  5. Step 5: Solve for x
    x = 7,108,062,268.49/93,420.44
  6. Step 6: Final answer
    x = 76,086.80

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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.