Home / 93,452.07-128,980.59-55,728.75

Finding the Fourth Proportional to 93,452.07, 128,980.59 and 55,728.75

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Solution

The fourth proportional to 93,452.07, 128,980.59 and 55,728.75 is: 76,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,452.07 : 128,980.59 = 55,728.75 : x
  2. Step 2: Convert to fraction form
    93,452.07/128,980.59 = 55,728.75/x
  3. Step 3: Cross multiply
    93,452.07x = 128,980.59 × 55,728.75
  4. Step 4: Simplify right side
    93,452.07x = 7,187,927,054.96
  5. Step 5: Solve for x
    x = 7,187,927,054.96/93,452.07
  6. Step 6: Final answer
    x = 76,915.65

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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.