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Finding the Fourth Proportional to 93,430.89, 128,932.83 and 50,989.73

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Solution

The fourth proportional to 93,430.89, 128,932.83 and 50,989.73 is: 70,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,430.89 : 128,932.83 = 50,989.73 : x
  2. Step 2: Convert to fraction form
    93,430.89/128,932.83 = 50,989.73/x
  3. Step 3: Cross multiply
    93,430.89x = 128,932.83 × 50,989.73
  4. Step 4: Simplify right side
    93,430.89x = 6,574,249,545.17
  5. Step 5: Solve for x
    x = 6,574,249,545.17/93,430.89
  6. Step 6: Final answer
    x = 70,364.84

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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.