Home / 52,666.04-78,999.14-21,090.32

Finding the Fourth Proportional to 52,666.04, 78,999.14 and 21,090.32

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Solution

The fourth proportional to 52,666.04, 78,999.14 and 21,090.32 is: 31,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,666.04 : 78,999.14 = 21,090.32 : x
  2. Step 2: Convert to fraction form
    52,666.04/78,999.14 = 21,090.32/x
  3. Step 3: Cross multiply
    52,666.04x = 78,999.14 × 21,090.32
  4. Step 4: Simplify right side
    52,666.04x = 1,666,117,142.32
  5. Step 5: Solve for x
    x = 1,666,117,142.32/52,666.04
  6. Step 6: Final answer
    x = 31,635.51

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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.