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Finding the Fourth Proportional to 93,089.79, 128,463.30 and 50,648.49

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Solution

The fourth proportional to 93,089.79, 128,463.30 and 50,648.49 is: 69,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,089.79 : 128,463.30 = 50,648.49 : x
  2. Step 2: Convert to fraction form
    93,089.79/128,463.30 = 50,648.49/x
  3. Step 3: Cross multiply
    93,089.79x = 128,463.30 × 50,648.49
  4. Step 4: Simplify right side
    93,089.79x = 6,506,472,165.42
  5. Step 5: Solve for x
    x = 6,506,472,165.42/93,089.79
  6. Step 6: Final answer
    x = 69,894.58

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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.