Home / 91,095.57-125,656.77-58,779.61

Finding the Fourth Proportional to 91,095.57, 125,656.77 and 58,779.61

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Solution

The fourth proportional to 91,095.57, 125,656.77 and 58,779.61 is: 81,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,095.57 : 125,656.77 = 58,779.61 : x
  2. Step 2: Convert to fraction form
    91,095.57/125,656.77 = 58,779.61/x
  3. Step 3: Cross multiply
    91,095.57x = 125,656.77 × 58,779.61
  4. Step 4: Simplify right side
    91,095.57x = 7,386,055,510.11
  5. Step 5: Solve for x
    x = 7,386,055,510.11/91,095.57
  6. Step 6: Final answer
    x = 81,080.29

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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.