Home / 98,933.04-136,531.08-56,490.80

Finding the Fourth Proportional to 98,933.04, 136,531.08 and 56,490.80

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Solution

The fourth proportional to 98,933.04, 136,531.08 and 56,490.80 is: 77,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,933.04 : 136,531.08 = 56,490.80 : x
  2. Step 2: Convert to fraction form
    98,933.04/136,531.08 = 56,490.80/x
  3. Step 3: Cross multiply
    98,933.04x = 136,531.08 × 56,490.80
  4. Step 4: Simplify right side
    98,933.04x = 7,712,749,934.06
  5. Step 5: Solve for x
    x = 7,712,749,934.06/98,933.04
  6. Step 6: Final answer
    x = 77,959.29

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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.