Home / 53,802.20-74,256.10-31,141.80

Finding the Fourth Proportional to 53,802.20, 74,256.10 and 31,141.80

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Solution

The fourth proportional to 53,802.20, 74,256.10 and 31,141.80 is: 42,980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,802.20 : 74,256.10 = 31,141.80 : x
  2. Step 2: Convert to fraction form
    53,802.20/74,256.10 = 31,141.80/x
  3. Step 3: Cross multiply
    53,802.20x = 74,256.10 × 31,141.80
  4. Step 4: Simplify right side
    53,802.20x = 2,312,468,614.98
  5. Step 5: Solve for x
    x = 2,312,468,614.98/53,802.20
  6. Step 6: Final answer
    x = 42,980.93

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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.