Home / 88,142.51-121,636.28-47,855.95

Finding the Fourth Proportional to 88,142.51, 121,636.28 and 47,855.95

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Solution

The fourth proportional to 88,142.51, 121,636.28 and 47,855.95 is: 66,041.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,142.51 : 121,636.28 = 47,855.95 : x
  2. Step 2: Convert to fraction form
    88,142.51/121,636.28 = 47,855.95/x
  3. Step 3: Cross multiply
    88,142.51x = 121,636.28 × 47,855.95
  4. Step 4: Simplify right side
    88,142.51x = 5,821,019,549.42
  5. Step 5: Solve for x
    x = 5,821,019,549.42/88,142.51
  6. Step 6: Final answer
    x = 66,041.00

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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.