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Finding the Fourth Proportional to 71,430.51, 98,573.94 and 40,802.94

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Solution

The fourth proportional to 71,430.51, 98,573.94 and 40,802.94 is: 56,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,430.51 : 98,573.94 = 40,802.94 : x
  2. Step 2: Convert to fraction form
    71,430.51/98,573.94 = 40,802.94/x
  3. Step 3: Cross multiply
    71,430.51x = 98,573.94 × 40,802.94
  4. Step 4: Simplify right side
    71,430.51x = 4,022,106,444.63
  5. Step 5: Solve for x
    x = 4,022,106,444.63/71,430.51
  6. Step 6: Final answer
    x = 56,307.96

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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.