Home / 78,074.18-107,741.63-42,263.27

Finding the Fourth Proportional to 78,074.18, 107,741.63 and 42,263.27

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Solution

The fourth proportional to 78,074.18, 107,741.63 and 42,263.27 is: 58,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,074.18 : 107,741.63 = 42,263.27 : x
  2. Step 2: Convert to fraction form
    78,074.18/107,741.63 = 42,263.27/x
  3. Step 3: Cross multiply
    78,074.18x = 107,741.63 × 42,263.27
  4. Step 4: Simplify right side
    78,074.18x = 4,553,512,848.91
  5. Step 5: Solve for x
    x = 4,553,512,848.91/78,074.18
  6. Step 6: Final answer
    x = 58,322.91

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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.