Home / 98,941.04-136,542.12-56,498.80

Finding the Fourth Proportional to 98,941.04, 136,542.12 and 56,498.80

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Solution

The fourth proportional to 98,941.04, 136,542.12 and 56,498.80 is: 77,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,941.04 : 136,542.12 = 56,498.80 : x
  2. Step 2: Convert to fraction form
    98,941.04/136,542.12 = 56,498.80/x
  3. Step 3: Cross multiply
    98,941.04x = 136,542.12 × 56,498.80
  4. Step 4: Simplify right side
    98,941.04x = 7,714,465,929.46
  5. Step 5: Solve for x
    x = 7,714,465,929.46/98,941.04
  6. Step 6: Final answer
    x = 77,970.33

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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.