Home / 86,460.47-129,679.77-23,285.64

Finding the Fourth Proportional to 86,460.47, 129,679.77 and 23,285.64

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Solution

The fourth proportional to 86,460.47, 129,679.77 and 23,285.64 is: 34,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,460.47 : 129,679.77 = 23,285.64 : x
  2. Step 2: Convert to fraction form
    86,460.47/129,679.77 = 23,285.64/x
  3. Step 3: Cross multiply
    86,460.47x = 129,679.77 × 23,285.64
  4. Step 4: Simplify right side
    86,460.47x = 3,019,676,439.50
  5. Step 5: Solve for x
    x = 3,019,676,439.50/86,460.47
  6. Step 6: Final answer
    x = 34,925.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.