Home / 88,401.68-121,955.76-58,148.16

Finding the Fourth Proportional to 88,401.68, 121,955.76 and 58,148.16

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Solution

The fourth proportional to 88,401.68, 121,955.76 and 58,148.16 is: 80,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,401.68 : 121,955.76 = 58,148.16 : x
  2. Step 2: Convert to fraction form
    88,401.68/121,955.76 = 58,148.16/x
  3. Step 3: Cross multiply
    88,401.68x = 121,955.76 × 58,148.16
  4. Step 4: Simplify right side
    88,401.68x = 7,091,503,045.40
  5. Step 5: Solve for x
    x = 7,091,503,045.40/88,401.68
  6. Step 6: Final answer
    x = 80,219.10

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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.