Home / 93,390.35-128,878.40-50,948.58

Finding the Fourth Proportional to 93,390.35, 128,878.40 and 50,948.58

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Solution

The fourth proportional to 93,390.35, 128,878.40 and 50,948.58 is: 70,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,390.35 : 128,878.40 = 50,948.58 : x
  2. Step 2: Convert to fraction form
    93,390.35/128,878.40 = 50,948.58/x
  3. Step 3: Cross multiply
    93,390.35x = 128,878.40 × 50,948.58
  4. Step 4: Simplify right side
    93,390.35x = 6,566,171,215.10
  5. Step 5: Solve for x
    x = 6,566,171,215.10/93,390.35
  6. Step 6: Final answer
    x = 70,308.88

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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.