Home / 56,378.89-77,802.96-30,884.70

Finding the Fourth Proportional to 56,378.89, 77,802.96 and 30,884.70

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Solution

The fourth proportional to 56,378.89, 77,802.96 and 30,884.70 is: 42,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,378.89 : 77,802.96 = 30,884.70 : x
  2. Step 2: Convert to fraction form
    56,378.89/77,802.96 = 30,884.70/x
  3. Step 3: Cross multiply
    56,378.89x = 77,802.96 × 30,884.70
  4. Step 4: Simplify right side
    56,378.89x = 2,402,920,884.20
  5. Step 5: Solve for x
    x = 2,402,920,884.20/56,378.89
  6. Step 6: Final answer
    x = 42,620.93

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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.