Home / 56,886.16-78,502.35-31,392.76

Finding the Fourth Proportional to 56,886.16, 78,502.35 and 31,392.76

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Solution

The fourth proportional to 56,886.16, 78,502.35 and 31,392.76 is: 43,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,886.16 : 78,502.35 = 31,392.76 : x
  2. Step 2: Convert to fraction form
    56,886.16/78,502.35 = 31,392.76/x
  3. Step 3: Cross multiply
    56,886.16x = 78,502.35 × 31,392.76
  4. Step 4: Simplify right side
    56,886.16x = 2,464,405,432.99
  5. Step 5: Solve for x
    x = 2,464,405,432.99/56,886.16
  6. Step 6: Final answer
    x = 43,321.70

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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.