Home / 56,378.61-77,801.60-30,884.76

Finding the Fourth Proportional to 56,378.61, 77,801.60 and 30,884.76

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Solution

The fourth proportional to 56,378.61, 77,801.60 and 30,884.76 is: 42,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,378.61 : 77,801.60 = 30,884.76 : x
  2. Step 2: Convert to fraction form
    56,378.61/77,801.60 = 30,884.76/x
  3. Step 3: Cross multiply
    56,378.61x = 77,801.60 × 30,884.76
  4. Step 4: Simplify right side
    56,378.61x = 2,402,883,820.83
  5. Step 5: Solve for x
    x = 2,402,883,820.83/56,378.61
  6. Step 6: Final answer
    x = 42,620.49

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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.