Home / 83,871.04-115,743.80-46,145.36

Finding the Fourth Proportional to 83,871.04, 115,743.80 and 46,145.36

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Solution

The fourth proportional to 83,871.04, 115,743.80 and 46,145.36 is: 63,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,871.04 : 115,743.80 = 46,145.36 : x
  2. Step 2: Convert to fraction form
    83,871.04/115,743.80 = 46,145.36/x
  3. Step 3: Cross multiply
    83,871.04x = 115,743.80 × 46,145.36
  4. Step 4: Simplify right side
    83,871.04x = 5,341,039,318.77
  5. Step 5: Solve for x
    x = 5,341,039,318.77/83,871.04
  6. Step 6: Final answer
    x = 63,681.57

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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.