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Finding the Fourth Proportional to 93,281.88, 128,728.77 and 50,840.34

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Solution

The fourth proportional to 93,281.88, 128,728.77 and 50,840.34 is: 70,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,281.88 : 128,728.77 = 50,840.34 : x
  2. Step 2: Convert to fraction form
    93,281.88/128,728.77 = 50,840.34/x
  3. Step 3: Cross multiply
    93,281.88x = 128,728.77 × 50,840.34
  4. Step 4: Simplify right side
    93,281.88x = 6,544,614,434.58
  5. Step 5: Solve for x
    x = 6,544,614,434.58/93,281.88
  6. Step 6: Final answer
    x = 70,159.55

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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.