Home / 88,008.12-121,424.67-53,981.64

Finding the Fourth Proportional to 88,008.12, 121,424.67 and 53,981.64

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Solution

The fourth proportional to 88,008.12, 121,424.67 and 53,981.64 is: 74,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,008.12 : 121,424.67 = 53,981.64 : x
  2. Step 2: Convert to fraction form
    88,008.12/121,424.67 = 53,981.64/x
  3. Step 3: Cross multiply
    88,008.12x = 121,424.67 × 53,981.64
  4. Step 4: Simplify right side
    88,008.12x = 6,554,702,823.06
  5. Step 5: Solve for x
    x = 6,554,702,823.06/88,008.12
  6. Step 6: Final answer
    x = 74,478.39

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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.