Home / 81,320.63-112,223.03-45,513.95

Finding the Fourth Proportional to 81,320.63, 112,223.03 and 45,513.95

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Solution

The fourth proportional to 81,320.63, 112,223.03 and 45,513.95 is: 62,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,320.63 : 112,223.03 = 45,513.95 : x
  2. Step 2: Convert to fraction form
    81,320.63/112,223.03 = 45,513.95/x
  3. Step 3: Cross multiply
    81,320.63x = 112,223.03 × 45,513.95
  4. Step 4: Simplify right side
    81,320.63x = 5,107,712,587.58
  5. Step 5: Solve for x
    x = 5,107,712,587.58/81,320.63
  6. Step 6: Final answer
    x = 62,809.56

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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.