Home / 90,482.04-124,870.14-58,678.20

Finding the Fourth Proportional to 90,482.04, 124,870.14 and 58,678.20

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Solution

The fourth proportional to 90,482.04, 124,870.14 and 58,678.20 is: 80,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,482.04 : 124,870.14 = 58,678.20 : x
  2. Step 2: Convert to fraction form
    90,482.04/124,870.14 = 58,678.20/x
  3. Step 3: Cross multiply
    90,482.04x = 124,870.14 × 58,678.20
  4. Step 4: Simplify right side
    90,482.04x = 7,327,155,048.95
  5. Step 5: Solve for x
    x = 7,327,155,048.95/90,482.04
  6. Step 6: Final answer
    x = 80,979.11

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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.