Home / 52,820.51-72,880.70-31,317.03

Finding the Fourth Proportional to 52,820.51, 72,880.70 and 31,317.03

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Solution

The fourth proportional to 52,820.51, 72,880.70 and 31,317.03 is: 43,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,820.51 : 72,880.70 = 31,317.03 : x
  2. Step 2: Convert to fraction form
    52,820.51/72,880.70 = 31,317.03/x
  3. Step 3: Cross multiply
    52,820.51x = 72,880.70 × 31,317.03
  4. Step 4: Simplify right side
    52,820.51x = 2,282,406,911.74
  5. Step 5: Solve for x
    x = 2,282,406,911.74/52,820.51
  6. Step 6: Final answer
    x = 43,210.62

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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.