Home / 78,228.23-107,973.63-46,415.57

Finding the Fourth Proportional to 78,228.23, 107,973.63 and 46,415.57

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Solution

The fourth proportional to 78,228.23, 107,973.63 and 46,415.57 is: 64,064.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,228.23 : 107,973.63 = 46,415.57 : x
  2. Step 2: Convert to fraction form
    78,228.23/107,973.63 = 46,415.57/x
  3. Step 3: Cross multiply
    78,228.23x = 107,973.63 × 46,415.57
  4. Step 4: Simplify right side
    78,228.23x = 5,011,657,581.42
  5. Step 5: Solve for x
    x = 5,011,657,581.42/78,228.23
  6. Step 6: Final answer
    x = 64,064.57

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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.