Home / 77,395.23-106,567.11-67,779.72

Finding the Fourth Proportional to 77,395.23, 106,567.11 and 67,779.72

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Solution

The fourth proportional to 77,395.23, 106,567.11 and 67,779.72 is: 93,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,395.23 : 106,567.11 = 67,779.72 : x
  2. Step 2: Convert to fraction form
    77,395.23/106,567.11 = 67,779.72/x
  3. Step 3: Cross multiply
    77,395.23x = 106,567.11 × 67,779.72
  4. Step 4: Simplify right side
    77,395.23x = 7,223,088,877.01
  5. Step 5: Solve for x
    x = 7,223,088,877.01/77,395.23
  6. Step 6: Final answer
    x = 93,327.31

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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.