Home / 93,018.24-128,312.64-55,304.64

Finding the Fourth Proportional to 93,018.24, 128,312.64 and 55,304.64

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Solution

The fourth proportional to 93,018.24, 128,312.64 and 55,304.64 is: 76,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,018.24 : 128,312.64 = 55,304.64 : x
  2. Step 2: Convert to fraction form
    93,018.24/128,312.64 = 55,304.64/x
  3. Step 3: Cross multiply
    93,018.24x = 128,312.64 × 55,304.64
  4. Step 4: Simplify right side
    93,018.24x = 7,096,284,362.65
  5. Step 5: Solve for x
    x = 7,096,284,362.65/93,018.24
  6. Step 6: Final answer
    x = 76,289.17

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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.