Home / 93,343.12-128,802.05-57,062.82

Finding the Fourth Proportional to 93,343.12, 128,802.05 and 57,062.82

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Solution

The fourth proportional to 93,343.12, 128,802.05 and 57,062.82 is: 78,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,343.12 : 128,802.05 = 57,062.82 : x
  2. Step 2: Convert to fraction form
    93,343.12/128,802.05 = 57,062.82/x
  3. Step 3: Cross multiply
    93,343.12x = 128,802.05 × 57,062.82
  4. Step 4: Simplify right side
    93,343.12x = 7,349,808,194.78
  5. Step 5: Solve for x
    x = 7,349,808,194.78/93,343.12
  6. Step 6: Final answer
    x = 78,739.69

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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.