Home / 99,779.85-149,665.59-46,453.50

Finding the Fourth Proportional to 99,779.85, 149,665.59 and 46,453.50

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Solution

The fourth proportional to 99,779.85, 149,665.59 and 46,453.50 is: 69,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,779.85 : 149,665.59 = 46,453.50 : x
  2. Step 2: Convert to fraction form
    99,779.85/149,665.59 = 46,453.50/x
  3. Step 3: Cross multiply
    99,779.85x = 149,665.59 × 46,453.50
  4. Step 4: Simplify right side
    99,779.85x = 6,952,490,485.07
  5. Step 5: Solve for x
    x = 6,952,490,485.07/99,779.85
  6. Step 6: Final answer
    x = 69,678.30

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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.