Home / 77,508.16-106,929.44-56,240.32

Finding the Fourth Proportional to 77,508.16, 106,929.44 and 56,240.32

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Solution

The fourth proportional to 77,508.16, 106,929.44 and 56,240.32 is: 77,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,508.16 : 106,929.44 = 56,240.32 : x
  2. Step 2: Convert to fraction form
    77,508.16/106,929.44 = 56,240.32/x
  3. Step 3: Cross multiply
    77,508.16x = 106,929.44 × 56,240.32
  4. Step 4: Simplify right side
    77,508.16x = 6,013,745,923.02
  5. Step 5: Solve for x
    x = 6,013,745,923.02/77,508.16
  6. Step 6: Final answer
    x = 77,588.55

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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.