Home / 90,802.05-125,368.55-56,824.26

Finding the Fourth Proportional to 90,802.05, 125,368.55 and 56,824.26

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Solution

The fourth proportional to 90,802.05, 125,368.55 and 56,824.26 is: 78,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,802.05 : 125,368.55 = 56,824.26 : x
  2. Step 2: Convert to fraction form
    90,802.05/125,368.55 = 56,824.26/x
  3. Step 3: Cross multiply
    90,802.05x = 125,368.55 × 56,824.26
  4. Step 4: Simplify right side
    90,802.05x = 7,123,975,081.02
  5. Step 5: Solve for x
    x = 7,123,975,081.02/90,802.05
  6. Step 6: Final answer
    x = 78,456.10

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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.