Home / 78,444.67-108,254.34-42,634.76

Finding the Fourth Proportional to 78,444.67, 108,254.34 and 42,634.76

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Solution

The fourth proportional to 78,444.67, 108,254.34 and 42,634.76 is: 58,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,444.67 : 108,254.34 = 42,634.76 : x
  2. Step 2: Convert to fraction form
    78,444.67/108,254.34 = 42,634.76/x
  3. Step 3: Cross multiply
    78,444.67x = 108,254.34 × 42,634.76
  4. Step 4: Simplify right side
    78,444.67x = 4,615,397,804.86
  5. Step 5: Solve for x
    x = 4,615,397,804.86/78,444.67
  6. Step 6: Final answer
    x = 58,836.35

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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.