Home / 93,211.24-128,631.78-55,485.16

Finding the Fourth Proportional to 93,211.24, 128,631.78 and 55,485.16

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Solution

The fourth proportional to 93,211.24, 128,631.78 and 55,485.16 is: 76,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,211.24 : 128,631.78 = 55,485.16 : x
  2. Step 2: Convert to fraction form
    93,211.24/128,631.78 = 55,485.16/x
  3. Step 3: Cross multiply
    93,211.24x = 128,631.78 × 55,485.16
  4. Step 4: Simplify right side
    93,211.24x = 7,137,154,894.38
  5. Step 5: Solve for x
    x = 7,137,154,894.38/93,211.24
  6. Step 6: Final answer
    x = 76,569.68

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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.