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Finding the Fourth Proportional to 93,001.60, 128,342.72 and 54,762.80

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Solution

The fourth proportional to 93,001.60, 128,342.72 and 54,762.80 is: 75,572.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,001.60 : 128,342.72 = 54,762.80 : x
  2. Step 2: Convert to fraction form
    93,001.60/128,342.72 = 54,762.80/x
  3. Step 3: Cross multiply
    93,001.60x = 128,342.72 × 54,762.80
  4. Step 4: Simplify right side
    93,001.60x = 7,028,406,706.82
  5. Step 5: Solve for x
    x = 7,028,406,706.82/93,001.60
  6. Step 6: Final answer
    x = 75,572.97

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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.