Home / 77,215.36-115,881.28-56,492.32

Finding the Fourth Proportional to 77,215.36, 115,881.28 and 56,492.32

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Solution

The fourth proportional to 77,215.36, 115,881.28 and 56,492.32 is: 84,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,215.36 : 115,881.28 = 56,492.32 : x
  2. Step 2: Convert to fraction form
    77,215.36/115,881.28 = 56,492.32/x
  3. Step 3: Cross multiply
    77,215.36x = 115,881.28 × 56,492.32
  4. Step 4: Simplify right side
    77,215.36x = 6,546,402,351.77
  5. Step 5: Solve for x
    x = 6,546,402,351.77/77,215.36
  6. Step 6: Final answer
    x = 84,781.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.