Home / 56,341.28-77,750.70-30,499.76

Finding the Fourth Proportional to 56,341.28, 77,750.70 and 30,499.76

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Solution

The fourth proportional to 56,341.28, 77,750.70 and 30,499.76 is: 42,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,341.28 : 77,750.70 = 30,499.76 : x
  2. Step 2: Convert to fraction form
    56,341.28/77,750.70 = 30,499.76/x
  3. Step 3: Cross multiply
    56,341.28x = 77,750.70 × 30,499.76
  4. Step 4: Simplify right side
    56,341.28x = 2,371,377,689.83
  5. Step 5: Solve for x
    x = 2,371,377,689.83/56,341.28
  6. Step 6: Final answer
    x = 42,089.52

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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.