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Finding the Fourth Proportional to 86,312.94, 119,128.41 and 52,340.01

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Solution

The fourth proportional to 86,312.94, 119,128.41 and 52,340.01 is: 72,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,312.94 : 119,128.41 = 52,340.01 : x
  2. Step 2: Convert to fraction form
    86,312.94/119,128.41 = 52,340.01/x
  3. Step 3: Cross multiply
    86,312.94x = 119,128.41 × 52,340.01
  4. Step 4: Simplify right side
    86,312.94x = 6,235,182,170.68
  5. Step 5: Solve for x
    x = 6,235,182,170.68/86,312.94
  6. Step 6: Final answer
    x = 72,239.25

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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.