Home / 88,019.68-121,332.78-53,965.12

Finding the Fourth Proportional to 88,019.68, 121,332.78 and 53,965.12

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Solution

The fourth proportional to 88,019.68, 121,332.78 and 53,965.12 is: 74,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,019.68 : 121,332.78 = 53,965.12 : x
  2. Step 2: Convert to fraction form
    88,019.68/121,332.78 = 53,965.12/x
  3. Step 3: Cross multiply
    88,019.68x = 121,332.78 × 53,965.12
  4. Step 4: Simplify right side
    88,019.68x = 6,547,738,032.63
  5. Step 5: Solve for x
    x = 6,547,738,032.63/88,019.68
  6. Step 6: Final answer
    x = 74,389.48

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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.