Home / 77,870.17-107,484.60-48,814.26

Finding the Fourth Proportional to 77,870.17, 107,484.60 and 48,814.26

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Solution

The fourth proportional to 77,870.17, 107,484.60 and 48,814.26 is: 67,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,870.17 : 107,484.60 = 48,814.26 : x
  2. Step 2: Convert to fraction form
    77,870.17/107,484.60 = 48,814.26/x
  3. Step 3: Cross multiply
    77,870.17x = 107,484.60 × 48,814.26
  4. Step 4: Simplify right side
    77,870.17x = 5,246,781,210.40
  5. Step 5: Solve for x
    x = 5,246,781,210.40/77,870.17
  6. Step 6: Final answer
    x = 67,378.58

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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.