Home / 99,424.02-137,211.06-56,985.29

Finding the Fourth Proportional to 99,424.02, 137,211.06 and 56,985.29

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Solution

The fourth proportional to 99,424.02, 137,211.06 and 56,985.29 is: 78,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,424.02 : 137,211.06 = 56,985.29 : x
  2. Step 2: Convert to fraction form
    99,424.02/137,211.06 = 56,985.29/x
  3. Step 3: Cross multiply
    99,424.02x = 137,211.06 × 56,985.29
  4. Step 4: Simplify right side
    99,424.02x = 7,819,011,359.25
  5. Step 5: Solve for x
    x = 7,819,011,359.25/99,424.02
  6. Step 6: Final answer
    x = 78,643.08

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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.