Home / 93,416.45-128,870.29-55,150.36

Finding the Fourth Proportional to 93,416.45, 128,870.29 and 55,150.36

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Solution

The fourth proportional to 93,416.45, 128,870.29 and 55,150.36 is: 76,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,416.45 : 128,870.29 = 55,150.36 : x
  2. Step 2: Convert to fraction form
    93,416.45/128,870.29 = 55,150.36/x
  3. Step 3: Cross multiply
    93,416.45x = 128,870.29 × 55,150.36
  4. Step 4: Simplify right side
    93,416.45x = 7,107,242,633.57
  5. Step 5: Solve for x
    x = 7,107,242,633.57/93,416.45
  6. Step 6: Final answer
    x = 76,081.28

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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.