Home / 52,011.12-77,970.12-18,723.36

Finding the Fourth Proportional to 52,011.12, 77,970.12 and 18,723.36

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Solution

The fourth proportional to 52,011.12, 77,970.12 and 18,723.36 is: 28,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,011.12 : 77,970.12 = 18,723.36 : x
  2. Step 2: Convert to fraction form
    52,011.12/77,970.12 = 18,723.36/x
  3. Step 3: Cross multiply
    52,011.12x = 77,970.12 × 18,723.36
  4. Step 4: Simplify right side
    52,011.12x = 1,459,862,626.00
  5. Step 5: Solve for x
    x = 1,459,862,626.00/52,011.12
  6. Step 6: Final answer
    x = 28,068.28

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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.