Home / 52,657.06-78,985.59-21,081.34

Finding the Fourth Proportional to 52,657.06, 78,985.59 and 21,081.34

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Solution

The fourth proportional to 52,657.06, 78,985.59 and 21,081.34 is: 31,622.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,657.06 : 78,985.59 = 21,081.34 : x
  2. Step 2: Convert to fraction form
    52,657.06/78,985.59 = 21,081.34/x
  3. Step 3: Cross multiply
    52,657.06x = 78,985.59 × 21,081.34
  4. Step 4: Simplify right side
    52,657.06x = 1,665,122,077.89
  5. Step 5: Solve for x
    x = 1,665,122,077.89/52,657.06
  6. Step 6: Final answer
    x = 31,622.01

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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.