Home / 86,216.40-129,235.91-46,690.02

Finding the Fourth Proportional to 86,216.40, 129,235.91 and 46,690.02

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Solution

The fourth proportional to 86,216.40, 129,235.91 and 46,690.02 is: 69,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,216.40 : 129,235.91 = 46,690.02 : x
  2. Step 2: Convert to fraction form
    86,216.40/129,235.91 = 46,690.02/x
  3. Step 3: Cross multiply
    86,216.40x = 129,235.91 × 46,690.02
  4. Step 4: Simplify right side
    86,216.40x = 6,034,026,989.17
  5. Step 5: Solve for x
    x = 6,034,026,989.17/86,216.40
  6. Step 6: Final answer
    x = 69,987.00

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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.