Home / 86,922.19-119,948.47-53,381.71

Finding the Fourth Proportional to 86,922.19, 119,948.47 and 53,381.71

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Solution

The fourth proportional to 86,922.19, 119,948.47 and 53,381.71 is: 73,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,922.19 : 119,948.47 = 53,381.71 : x
  2. Step 2: Convert to fraction form
    86,922.19/119,948.47 = 53,381.71/x
  3. Step 3: Cross multiply
    86,922.19x = 119,948.47 × 53,381.71
  4. Step 4: Simplify right side
    86,922.19x = 6,403,054,440.48
  5. Step 5: Solve for x
    x = 6,403,054,440.48/86,922.19
  6. Step 6: Final answer
    x = 73,664.21

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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.