Home / 86,291.04-129,382.92-36,345.40

Finding the Fourth Proportional to 86,291.04, 129,382.92 and 36,345.40

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Solution

The fourth proportional to 86,291.04, 129,382.92 and 36,345.40 is: 54,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,291.04 : 129,382.92 = 36,345.40 : x
  2. Step 2: Convert to fraction form
    86,291.04/129,382.92 = 36,345.40/x
  3. Step 3: Cross multiply
    86,291.04x = 129,382.92 × 36,345.40
  4. Step 4: Simplify right side
    86,291.04x = 4,702,473,980.57
  5. Step 5: Solve for x
    x = 4,702,473,980.57/86,291.04
  6. Step 6: Final answer
    x = 54,495.51

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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.