Home / 93,159.49-128,562.40-50,720.35

Finding the Fourth Proportional to 93,159.49, 128,562.40 and 50,720.35

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Solution

The fourth proportional to 93,159.49, 128,562.40 and 50,720.35 is: 69,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,159.49 : 128,562.40 = 50,720.35 : x
  2. Step 2: Convert to fraction form
    93,159.49/128,562.40 = 50,720.35/x
  3. Step 3: Cross multiply
    93,159.49x = 128,562.40 × 50,720.35
  4. Step 4: Simplify right side
    93,159.49x = 6,520,729,282.03
  5. Step 5: Solve for x
    x = 6,520,729,282.03/93,159.49
  6. Step 6: Final answer
    x = 69,995.33

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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.