Home / 86,495.04-119,430.72-67,685.76

Finding the Fourth Proportional to 86,495.04, 119,430.72 and 67,685.76

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Solution

The fourth proportional to 86,495.04, 119,430.72 and 67,685.76 is: 93,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,495.04 : 119,430.72 = 67,685.76 : x
  2. Step 2: Convert to fraction form
    86,495.04/119,430.72 = 67,685.76/x
  3. Step 3: Cross multiply
    86,495.04x = 119,430.72 × 67,685.76
  4. Step 4: Simplify right side
    86,495.04x = 8,083,759,050.55
  5. Step 5: Solve for x
    x = 8,083,759,050.55/86,495.04
  6. Step 6: Final answer
    x = 93,459.22

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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.