Home / 81,603.48-112,613.58-47,633.16

Finding the Fourth Proportional to 81,603.48, 112,613.58 and 47,633.16

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Solution

The fourth proportional to 81,603.48, 112,613.58 and 47,633.16 is: 65,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603.48 : 112,613.58 = 47,633.16 : x
  2. Step 2: Convert to fraction form
    81,603.48/112,613.58 = 47,633.16/x
  3. Step 3: Cross multiply
    81,603.48x = 112,613.58 × 47,633.16
  4. Step 4: Simplify right side
    81,603.48x = 5,364,140,674.31
  5. Step 5: Solve for x
    x = 5,364,140,674.31/81,603.48
  6. Step 6: Final answer
    x = 65,734.21

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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.