Home / 90,318.04-124,599.60-63,478.08

Finding the Fourth Proportional to 90,318.04, 124,599.60 and 63,478.08

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Solution

The fourth proportional to 90,318.04, 124,599.60 and 63,478.08 is: 87,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318.04 : 124,599.60 = 63,478.08 : x
  2. Step 2: Convert to fraction form
    90,318.04/124,599.60 = 63,478.08/x
  3. Step 3: Cross multiply
    90,318.04x = 124,599.60 × 63,478.08
  4. Step 4: Simplify right side
    90,318.04x = 7,909,343,376.77
  5. Step 5: Solve for x
    x = 7,909,343,376.77/90,318.04
  6. Step 6: Final answer
    x = 87,572.14

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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.