Home / 77,215.95-106,559.15-47,002.55

Finding the Fourth Proportional to 77,215.95, 106,559.15 and 47,002.55

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Solution

The fourth proportional to 77,215.95, 106,559.15 and 47,002.55 is: 64,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,215.95 : 106,559.15 = 47,002.55 : x
  2. Step 2: Convert to fraction form
    77,215.95/106,559.15 = 47,002.55/x
  3. Step 3: Cross multiply
    77,215.95x = 106,559.15 × 47,002.55
  4. Step 4: Simplify right side
    77,215.95x = 5,008,551,008.02
  5. Step 5: Solve for x
    x = 5,008,551,008.02/77,215.95
  6. Step 6: Final answer
    x = 64,864.20

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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.