Home / 93,157.08-128,557.31-50,715.51

Finding the Fourth Proportional to 93,157.08, 128,557.31 and 50,715.51

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Solution

The fourth proportional to 93,157.08, 128,557.31 and 50,715.51 is: 69,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,157.08 : 128,557.31 = 50,715.51 : x
  2. Step 2: Convert to fraction form
    93,157.08/128,557.31 = 50,715.51/x
  3. Step 3: Cross multiply
    93,157.08x = 128,557.31 × 50,715.51
  4. Step 4: Simplify right side
    93,157.08x = 6,519,849,287.30
  5. Step 5: Solve for x
    x = 6,519,849,287.30/93,157.08
  6. Step 6: Final answer
    x = 69,987.69

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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.