Home / 93,159.79-128,556.43-50,718.31

Finding the Fourth Proportional to 93,159.79, 128,556.43 and 50,718.31

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Solution

The fourth proportional to 93,159.79, 128,556.43 and 50,718.31 is: 69,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,159.79 : 128,556.43 = 50,718.31 : x
  2. Step 2: Convert to fraction form
    93,159.79/128,556.43 = 50,718.31/x
  3. Step 3: Cross multiply
    93,159.79x = 128,556.43 × 50,718.31
  4. Step 4: Simplify right side
    93,159.79x = 6,520,164,869.23
  5. Step 5: Solve for x
    x = 6,520,164,869.23/93,159.79
  6. Step 6: Final answer
    x = 69,989.05

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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.