Home / 77,582.08-107,126.40-63,244.16

Finding the Fourth Proportional to 77,582.08, 107,126.40 and 63,244.16

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Solution

The fourth proportional to 77,582.08, 107,126.40 and 63,244.16 is: 87,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,582.08 : 107,126.40 = 63,244.16 : x
  2. Step 2: Convert to fraction form
    77,582.08/107,126.40 = 63,244.16/x
  3. Step 3: Cross multiply
    77,582.08x = 107,126.40 × 63,244.16
  4. Step 4: Simplify right side
    77,582.08x = 6,775,119,181.82
  5. Step 5: Solve for x
    x = 6,775,119,181.82/77,582.08
  6. Step 6: Final answer
    x = 87,328.40

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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.