Home / 56,643.04-78,170.16-31,492

Finding the Fourth Proportional to 56,643.04, 78,170.16 and 31,492

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Solution

The fourth proportional to 56,643.04, 78,170.16 and 31,492 is: 43,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,643.04 : 78,170.16 = 31,492 : x
  2. Step 2: Convert to fraction form
    56,643.04/78,170.16 = 31,492/x
  3. Step 3: Cross multiply
    56,643.04x = 78,170.16 × 31,492
  4. Step 4: Simplify right side
    56,643.04x = 2,461,734,678.72
  5. Step 5: Solve for x
    x = 2,461,734,678.72/56,643.04
  6. Step 6: Final answer
    x = 43,460.50

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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.