Home / 78,547.04-108,397.86-45,019.52

Finding the Fourth Proportional to 78,547.04, 108,397.86 and 45,019.52

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Solution

The fourth proportional to 78,547.04, 108,397.86 and 45,019.52 is: 62,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,547.04 : 108,397.86 = 45,019.52 : x
  2. Step 2: Convert to fraction form
    78,547.04/108,397.86 = 45,019.52/x
  3. Step 3: Cross multiply
    78,547.04x = 108,397.86 × 45,019.52
  4. Step 4: Simplify right side
    78,547.04x = 4,880,019,626.23
  5. Step 5: Solve for x
    x = 4,880,019,626.23/78,547.04
  6. Step 6: Final answer
    x = 62,128.63

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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.