Home / 86,927.19-119,955.38-53,386.71

Finding the Fourth Proportional to 86,927.19, 119,955.38 and 53,386.71

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Solution

The fourth proportional to 86,927.19, 119,955.38 and 53,386.71 is: 73,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,927.19 : 119,955.38 = 53,386.71 : x
  2. Step 2: Convert to fraction form
    86,927.19/119,955.38 = 53,386.71/x
  3. Step 3: Cross multiply
    86,927.19x = 119,955.38 × 53,386.71
  4. Step 4: Simplify right side
    86,927.19x = 6,404,022,818.07
  5. Step 5: Solve for x
    x = 6,404,022,818.07/86,927.19
  6. Step 6: Final answer
    x = 73,671.11

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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.