Home / 93,145.23-128,539.78-50,703.66

Finding the Fourth Proportional to 93,145.23, 128,539.78 and 50,703.66

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Solution

The fourth proportional to 93,145.23, 128,539.78 and 50,703.66 is: 69,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.23 : 128,539.78 = 50,703.66 : x
  2. Step 2: Convert to fraction form
    93,145.23/128,539.78 = 50,703.66/x
  3. Step 3: Cross multiply
    93,145.23x = 128,539.78 × 50,703.66
  4. Step 4: Simplify right side
    93,145.23x = 6,517,437,174.84
  5. Step 5: Solve for x
    x = 6,517,437,174.84/93,145.23
  6. Step 6: Final answer
    x = 69,970.70

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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.