Home / 56,830.86-78,425.95-31,339.45

Finding the Fourth Proportional to 56,830.86, 78,425.95 and 31,339.45

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Solution

The fourth proportional to 56,830.86, 78,425.95 and 31,339.45 is: 43,248.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,830.86 : 78,425.95 = 31,339.45 : x
  2. Step 2: Convert to fraction form
    56,830.86/78,425.95 = 31,339.45/x
  3. Step 3: Cross multiply
    56,830.86x = 78,425.95 × 31,339.45
  4. Step 4: Simplify right side
    56,830.86x = 2,457,826,138.73
  5. Step 5: Solve for x
    x = 2,457,826,138.73/56,830.86
  6. Step 6: Final answer
    x = 43,248.09

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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.