Home / 81,386.94-112,312.66-45,576.64

Finding the Fourth Proportional to 81,386.94, 112,312.66 and 45,576.64

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Solution

The fourth proportional to 81,386.94, 112,312.66 and 45,576.64 is: 62,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386.94 : 112,312.66 = 45,576.64 : x
  2. Step 2: Convert to fraction form
    81,386.94/112,312.66 = 45,576.64/x
  3. Step 3: Cross multiply
    81,386.94x = 112,312.66 × 45,576.64
  4. Step 4: Simplify right side
    81,386.94x = 5,118,833,672.26
  5. Step 5: Solve for x
    x = 5,118,833,672.26/81,386.94
  6. Step 6: Final answer
    x = 62,895.03

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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.