Home / 56,109.51-77,438.63-54,263.32

Finding the Fourth Proportional to 56,109.51, 77,438.63 and 54,263.32

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Solution

The fourth proportional to 56,109.51, 77,438.63 and 54,263.32 is: 74,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,109.51 : 77,438.63 = 54,263.32 : x
  2. Step 2: Convert to fraction form
    56,109.51/77,438.63 = 54,263.32/x
  3. Step 3: Cross multiply
    56,109.51x = 77,438.63 × 54,263.32
  4. Step 4: Simplify right side
    56,109.51x = 4,202,077,102.11
  5. Step 5: Solve for x
    x = 4,202,077,102.11/56,109.51
  6. Step 6: Final answer
    x = 74,890.64

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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.