Home / 56,433.61-77,877.95-30,939.67

Finding the Fourth Proportional to 56,433.61, 77,877.95 and 30,939.67

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Solution

The fourth proportional to 56,433.61, 77,877.95 and 30,939.67 is: 42,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.61 : 77,877.95 = 30,939.67 : x
  2. Step 2: Convert to fraction form
    56,433.61/77,877.95 = 30,939.67/x
  3. Step 3: Cross multiply
    56,433.61x = 77,877.95 × 30,939.67
  4. Step 4: Simplify right side
    56,433.61x = 2,409,518,073.28
  5. Step 5: Solve for x
    x = 2,409,518,073.28/56,433.61
  6. Step 6: Final answer
    x = 42,696.51

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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.