Home / 86,531.04-119,345.67-54,688.32

Finding the Fourth Proportional to 86,531.04, 119,345.67 and 54,688.32

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Solution

The fourth proportional to 86,531.04, 119,345.67 and 54,688.32 is: 75,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,531.04 : 119,345.67 = 54,688.32 : x
  2. Step 2: Convert to fraction form
    86,531.04/119,345.67 = 54,688.32/x
  3. Step 3: Cross multiply
    86,531.04x = 119,345.67 × 54,688.32
  4. Step 4: Simplify right side
    86,531.04x = 6,526,814,191.57
  5. Step 5: Solve for x
    x = 6,526,814,191.57/86,531.04
  6. Step 6: Final answer
    x = 75,427.43

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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.