Home / 72,166.16-99,577.14-40,335.32

Finding the Fourth Proportional to 72,166.16, 99,577.14 and 40,335.32

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Solution

The fourth proportional to 72,166.16, 99,577.14 and 40,335.32 is: 55,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,166.16 : 99,577.14 = 40,335.32 : x
  2. Step 2: Convert to fraction form
    72,166.16/99,577.14 = 40,335.32/x
  3. Step 3: Cross multiply
    72,166.16x = 99,577.14 × 40,335.32
  4. Step 4: Simplify right side
    72,166.16x = 4,016,475,806.58
  5. Step 5: Solve for x
    x = 4,016,475,806.58/72,166.16
  6. Step 6: Final answer
    x = 55,655.94

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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.