Home / 72,265.95-99,731.39-40,434.17

Finding the Fourth Proportional to 72,265.95, 99,731.39 and 40,434.17

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Solution

The fourth proportional to 72,265.95, 99,731.39 and 40,434.17 is: 55,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,265.95 : 99,731.39 = 40,434.17 : x
  2. Step 2: Convert to fraction form
    72,265.95/99,731.39 = 40,434.17/x
  3. Step 3: Cross multiply
    72,265.95x = 99,731.39 × 40,434.17
  4. Step 4: Simplify right side
    72,265.95x = 4,032,555,276.77
  5. Step 5: Solve for x
    x = 4,032,555,276.77/72,265.95
  6. Step 6: Final answer
    x = 55,801.60

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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.