Home / 56,306.34-77,701.68-31,155.84

Finding the Fourth Proportional to 56,306.34, 77,701.68 and 31,155.84

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Solution

The fourth proportional to 56,306.34, 77,701.68 and 31,155.84 is: 42,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,306.34 : 77,701.68 = 31,155.84 : x
  2. Step 2: Convert to fraction form
    56,306.34/77,701.68 = 31,155.84/x
  3. Step 3: Cross multiply
    56,306.34x = 77,701.68 × 31,155.84
  4. Step 4: Simplify right side
    56,306.34x = 2,420,861,109.81
  5. Step 5: Solve for x
    x = 2,420,861,109.81/56,306.34
  6. Step 6: Final answer
    x = 42,994.47

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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.