Home / 91,398.68-126,127.81-50,564.32

Finding the Fourth Proportional to 91,398.68, 126,127.81 and 50,564.32

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Solution

The fourth proportional to 91,398.68, 126,127.81 and 50,564.32 is: 69,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,398.68 : 126,127.81 = 50,564.32 : x
  2. Step 2: Convert to fraction form
    91,398.68/126,127.81 = 50,564.32/x
  3. Step 3: Cross multiply
    91,398.68x = 126,127.81 × 50,564.32
  4. Step 4: Simplify right side
    91,398.68x = 6,377,566,693.63
  5. Step 5: Solve for x
    x = 6,377,566,693.63/91,398.68
  6. Step 6: Final answer
    x = 69,777.45

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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.