Home / 56,312.76-77,712.30-31,164.60

Finding the Fourth Proportional to 56,312.76, 77,712.30 and 31,164.60

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Solution

The fourth proportional to 56,312.76, 77,712.30 and 31,164.60 is: 43,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,312.76 : 77,712.30 = 31,164.60 : x
  2. Step 2: Convert to fraction form
    56,312.76/77,712.30 = 31,164.60/x
  3. Step 3: Cross multiply
    56,312.76x = 77,712.30 × 31,164.60
  4. Step 4: Simplify right side
    56,312.76x = 2,421,872,744.58
  5. Step 5: Solve for x
    x = 2,421,872,744.58/56,312.76
  6. Step 6: Final answer
    x = 43,007.53

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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.