Home / 86,507.04-119,312.55-54,664.32

Finding the Fourth Proportional to 86,507.04, 119,312.55 and 54,664.32

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Solution

The fourth proportional to 86,507.04, 119,312.55 and 54,664.32 is: 75,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,507.04 : 119,312.55 = 54,664.32 : x
  2. Step 2: Convert to fraction form
    86,507.04/119,312.55 = 54,664.32/x
  3. Step 3: Cross multiply
    86,507.04x = 119,312.55 × 54,664.32
  4. Step 4: Simplify right side
    86,507.04x = 6,522,139,413.22
  5. Step 5: Solve for x
    x = 6,522,139,413.22/86,507.04
  6. Step 6: Final answer
    x = 75,394.32

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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.