Home / 55,895.25-77,136.45-30,402.18

Finding the Fourth Proportional to 55,895.25, 77,136.45 and 30,402.18

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Solution

The fourth proportional to 55,895.25, 77,136.45 and 30,402.18 is: 41,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,895.25 : 77,136.45 = 30,402.18 : x
  2. Step 2: Convert to fraction form
    55,895.25/77,136.45 = 30,402.18/x
  3. Step 3: Cross multiply
    55,895.25x = 77,136.45 × 30,402.18
  4. Step 4: Simplify right side
    55,895.25x = 2,345,116,123.45
  5. Step 5: Solve for x
    x = 2,345,116,123.45/55,895.25
  6. Step 6: Final answer
    x = 41,955.55

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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.