Home / 75,370.17-103,981.23-45,156.76

Finding the Fourth Proportional to 75,370.17, 103,981.23 and 45,156.76

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Solution

The fourth proportional to 75,370.17, 103,981.23 and 45,156.76 is: 62,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,370.17 : 103,981.23 = 45,156.76 : x
  2. Step 2: Convert to fraction form
    75,370.17/103,981.23 = 45,156.76/x
  3. Step 3: Cross multiply
    75,370.17x = 103,981.23 × 45,156.76
  4. Step 4: Simplify right side
    75,370.17x = 4,695,455,447.61
  5. Step 5: Solve for x
    x = 4,695,455,447.61/75,370.17
  6. Step 6: Final answer
    x = 62,298.59

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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.