Home / 93,066.90-128,421.60-52,772.64

Finding the Fourth Proportional to 93,066.90, 128,421.60 and 52,772.64

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Solution

The fourth proportional to 93,066.90, 128,421.60 and 52,772.64 is: 72,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,066.90 : 128,421.60 = 52,772.64 : x
  2. Step 2: Convert to fraction form
    93,066.90/128,421.60 = 52,772.64/x
  3. Step 3: Cross multiply
    93,066.90x = 128,421.60 × 52,772.64
  4. Step 4: Simplify right side
    93,066.90x = 6,777,146,865.02
  5. Step 5: Solve for x
    x = 6,777,146,865.02/93,066.90
  6. Step 6: Final answer
    x = 72,820.16

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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.